LibCrypto: Implement Cipher and AES_CBC

Also adds a test program to userland

Libraries/LibCrypto/Cipher/AES.cpp

@@ -0,0 +1,422 @@
+/*
+ * Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/StringBuilder.h>
+#include <LibCrypto/Cipher/AES.h>
+
+namespace Crypto {
+
+template <typename T>
+constexpr u32 get_key(T pt)
+{
+    return ((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]);
+}
+
+constexpr void swap_keys(u32* keys, size_t i, size_t j)
+{
+    u32 temp = keys[i];
+    keys[i] = keys[j];
+    keys[j] = temp;
+}
+
+String AESCipherBlock::to_string() const
+{
+    StringBuilder builder;
+    for (size_t i = 0; i < BLOCK_SIZE / 8; ++i)
+        builder.appendf("%02x", m_data[i]);
+    return builder.build();
+}
+
+String AESCipherKey::to_string() const
+{
+    StringBuilder builder;
+    for (size_t i = 0; i < (rounds() + 1) * 4; ++i)
+        builder.appendf("%02x", m_rd_keys[i]);
+    return builder.build();
+}
+
+void AESCipherKey::expand_encrypt_key(const StringView& user_key, size_t bits)
+{
+    u32* round_key;
+    u32 temp;
+    size_t i { 0 };
+
+    ASSERT(!user_key.is_null());
+    ASSERT(is_valid_key_size(bits));
+
+    round_key = round_keys();
+
+    if (bits == 128) {
+        m_rounds = 10;
+    } else if (bits == 192) {
+        m_rounds = 12;
+    } else {
+        m_rounds = 14;
+    }
+
+    round_key[0] = get_key(user_key.substring_view(0, 4).characters_without_null_termination());
+    round_key[1] = get_key(user_key.substring_view(4, 4).characters_without_null_termination());
+    round_key[2] = get_key(user_key.substring_view(8, 4).characters_without_null_termination());
+    round_key[3] = get_key(user_key.substring_view(12, 4).characters_without_null_termination());
+    if (bits == 128) {
+        for (;;) {
+            temp = round_key[3];
+            // clang-format off
+            round_key[4] = round_key[0] ^
+                    (Tables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
+                    (Tables::Encode3[(temp >>  8) & 0xff] & 0x00ff0000) ^
+                    (Tables::Encode0[(temp      ) & 0xff] & 0x0000ff00) ^
+                    (Tables::Encode1[(temp >> 24)       ] & 0x000000ff) ^ Tables::RCON[i];
+            // clang-format on
+            round_key[5] = round_key[1] ^ round_key[4];
+            round_key[6] = round_key[2] ^ round_key[5];
+            round_key[7] = round_key[3] ^ round_key[6];
+            ++i;
+            if (i == 10)
+                break;
+            round_key += 4;
+        }
+        return;
+    }
+
+    round_key[4] = get_key(user_key.substring_view(16, 4).characters_without_null_termination());
+    round_key[5] = get_key(user_key.substring_view(20, 4).characters_without_null_termination());
+    if (bits == 192) {
+        for (;;) {
+            temp = round_key[5];
+            // clang-format off
+            round_key[6] = round_key[0] ^
+                    (Tables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
+                    (Tables::Encode3[(temp >>  8) & 0xff] & 0x00ff0000) ^
+                    (Tables::Encode0[(temp      ) & 0xff] & 0x0000ff00) ^
+                    (Tables::Encode1[(temp >> 24)       ] & 0x000000ff) ^ Tables::RCON[i];
+            // clang-format on
+            round_key[7] = round_key[1] ^ round_key[6];
+            round_key[8] = round_key[2] ^ round_key[7];
+            round_key[9] = round_key[3] ^ round_key[8];
+
+            ++i;
+            if (i == 8)
+                break;
+
+            round_key[10] = round_key[4] ^ round_key[9];
+            round_key[11] = round_key[5] ^ round_key[10];
+
+            round_key += 6;
+        }
+        return;
+    }
+
+    round_key[6] = get_key(user_key.substring_view(24, 4).characters_without_null_termination());
+    round_key[7] = get_key(user_key.substring_view(28, 4).characters_without_null_termination());
+    if (true) { // bits == 256
+        for (;;) {
+            temp = round_key[7];
+            // clang-format off
+            round_key[8] = round_key[0] ^
+                    (Tables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
+                    (Tables::Encode3[(temp >>  8) & 0xff] & 0x00ff0000) ^
+                    (Tables::Encode0[(temp      ) & 0xff] & 0x0000ff00) ^
+                    (Tables::Encode1[(temp >> 24)       ] & 0x000000ff) ^ Tables::RCON[i];
+            // clang-format on
+            round_key[9] = round_key[1] ^ round_key[8];
+            round_key[10] = round_key[2] ^ round_key[9];
+            round_key[11] = round_key[3] ^ round_key[10];
+
+            ++i;
+            if (i == 7)
+                break;
+
+            temp = round_key[11];
+            // clang-format off
+            round_key[12] = round_key[4] ^
+                    (Tables::Encode2[(temp >> 24)       ] & 0xff000000) ^
+                    (Tables::Encode3[(temp >> 16) & 0xff] & 0x00ff0000) ^
+                    (Tables::Encode0[(temp >>  8) & 0xff] & 0x0000ff00) ^
+                    (Tables::Encode1[(temp      ) & 0xff] & 0x000000ff) ;
+            // clang-format on
+            round_key[13] = round_key[5] ^ round_key[12];
+            round_key[14] = round_key[6] ^ round_key[13];
+            round_key[15] = round_key[7] ^ round_key[14];
+
+            round_key += 8;
+        }
+        return;
+    }
+}
+
+void AESCipherKey::expand_decrypt_key(const StringView& user_key, size_t bits)
+{
+    u32* round_key;
+
+    expand_encrypt_key(user_key, bits);
+
+    round_key = round_keys();
+
+    // reorder round keys
+    for (size_t i = 0, j = 4 * rounds(); i < j; i += 4, j -= 4) {
+        swap_keys(round_key, i, j);
+        swap_keys(round_key, i + 1, j + 1);
+        swap_keys(round_key, i + 2, j + 2);
+        swap_keys(round_key, i + 3, j + 3);
+    }
+
+    // apply inverse mix-column to middle rounds
+    for (size_t i = 1; i < rounds(); ++i) {
+        round_key += 4;
+        // clang-format off
+        round_key[0] =
+                Tables::Decode0[Tables::Encode1[(round_key[0] >> 24)       ] & 0xff] ^
+                Tables::Decode1[Tables::Encode1[(round_key[0] >> 16) & 0xff] & 0xff] ^
+                Tables::Decode2[Tables::Encode1[(round_key[0] >>  8) & 0xff] & 0xff] ^
+                Tables::Decode3[Tables::Encode1[(round_key[0]      ) & 0xff] & 0xff] ;
+        round_key[1] =
+                Tables::Decode0[Tables::Encode1[(round_key[1] >> 24)       ] & 0xff] ^
+                Tables::Decode1[Tables::Encode1[(round_key[1] >> 16) & 0xff] & 0xff] ^
+                Tables::Decode2[Tables::Encode1[(round_key[1] >>  8) & 0xff] & 0xff] ^
+                Tables::Decode3[Tables::Encode1[(round_key[1]      ) & 0xff] & 0xff] ;
+        round_key[2] =
+                Tables::Decode0[Tables::Encode1[(round_key[2] >> 24)       ] & 0xff] ^
+                Tables::Decode1[Tables::Encode1[(round_key[2] >> 16) & 0xff] & 0xff] ^
+                Tables::Decode2[Tables::Encode1[(round_key[2] >>  8) & 0xff] & 0xff] ^
+                Tables::Decode3[Tables::Encode1[(round_key[2]      ) & 0xff] & 0xff] ;
+        round_key[3] =
+                Tables::Decode0[Tables::Encode1[(round_key[3] >> 24)       ] & 0xff] ^
+                Tables::Decode1[Tables::Encode1[(round_key[3] >> 16) & 0xff] & 0xff] ^
+                Tables::Decode2[Tables::Encode1[(round_key[3] >>  8) & 0xff] & 0xff] ^
+                Tables::Decode3[Tables::Encode1[(round_key[3]      ) & 0xff] & 0xff] ;
+        // clang-format on
+    }
+}
+
+void AESCipher::encrypt_block(const AESCipherBlock& in, AESCipherBlock& out)
+{
+    u32 s0, s1, s2, s3, t0, t1, t2, t3;
+    size_t r { 0 };
+
+    const auto& dec_key = key();
+    const auto* round_keys = dec_key.round_keys();
+
+    s0 = get_key(in.data().offset_pointer(0)) ^ round_keys[0];
+    s1 = get_key(in.data().offset_pointer(4)) ^ round_keys[1];
+    s2 = get_key(in.data().offset_pointer(8)) ^ round_keys[2];
+    s3 = get_key(in.data().offset_pointer(12)) ^ round_keys[3];
+
+    r = dec_key.rounds() >> 1;
+
+    // apply the first |r - 1| rounds
+    auto i { 0 };
+    for (;;) {
+        ++i;
+        // clang-format off
+        t0 = Tables::Encode0[(s0 >> 24)       ] ^
+             Tables::Encode1[(s1 >> 16) & 0xff] ^
+             Tables::Encode2[(s2 >>  8) & 0xff] ^
+             Tables::Encode3[(s3      ) & 0xff] ^ round_keys[4];
+        t1 = Tables::Encode0[(s1 >> 24)       ] ^
+             Tables::Encode1[(s2 >> 16) & 0xff] ^
+             Tables::Encode2[(s3 >>  8) & 0xff] ^
+             Tables::Encode3[(s0      ) & 0xff] ^ round_keys[5];
+        t2 = Tables::Encode0[(s2 >> 24)       ] ^
+             Tables::Encode1[(s3 >> 16) & 0xff] ^
+             Tables::Encode2[(s0 >>  8) & 0xff] ^
+             Tables::Encode3[(s1      ) & 0xff] ^ round_keys[6];
+        t3 = Tables::Encode0[(s3 >> 24)       ] ^
+             Tables::Encode1[(s0 >> 16) & 0xff] ^
+             Tables::Encode2[(s1 >>  8) & 0xff] ^
+             Tables::Encode3[(s2      ) & 0xff] ^ round_keys[7];
+        // clang-format on
+
+        round_keys += 8;
+        --r;
+        ++i;
+        if (r == 0)
+            break;
+
+        // clang-format off
+        s0 = Tables::Encode0[(t0 >> 24)       ] ^
+             Tables::Encode1[(t1 >> 16) & 0xff] ^
+             Tables::Encode2[(t2 >>  8) & 0xff] ^
+             Tables::Encode3[(t3      ) & 0xff] ^ round_keys[0];
+        s1 = Tables::Encode0[(t1 >> 24)       ] ^
+             Tables::Encode1[(t2 >> 16) & 0xff] ^
+             Tables::Encode2[(t3 >>  8) & 0xff] ^
+             Tables::Encode3[(t0      ) & 0xff] ^ round_keys[1];
+        s2 = Tables::Encode0[(t2 >> 24)       ] ^
+             Tables::Encode1[(t3 >> 16) & 0xff] ^
+             Tables::Encode2[(t0 >>  8) & 0xff] ^
+             Tables::Encode3[(t1      ) & 0xff] ^ round_keys[2];
+        s3 = Tables::Encode0[(t3 >> 24)       ] ^
+             Tables::Encode1[(t0 >> 16) & 0xff] ^
+             Tables::Encode2[(t1 >>  8) & 0xff] ^
+             Tables::Encode3[(t2      ) & 0xff] ^ round_keys[3];
+        // clang-format on
+    }
+
+    // apply the last round and put the encrypted data into out
+    // clang-format off
+    s0 = (Tables::Encode2[(t0 >> 24)       ] & 0xff000000) ^
+         (Tables::Encode3[(t1 >> 16) & 0xff] & 0x00ff0000) ^
+         (Tables::Encode0[(t2 >>  8) & 0xff] & 0x0000ff00) ^
+         (Tables::Encode1[(t3      ) & 0xff] & 0x000000ff) ^ round_keys[0];
+    out.put(0, s0);
+
+    s1 = (Tables::Encode2[(t1 >> 24)       ] & 0xff000000) ^
+         (Tables::Encode3[(t2 >> 16) & 0xff] & 0x00ff0000) ^
+         (Tables::Encode0[(t3 >>  8) & 0xff] & 0x0000ff00) ^
+         (Tables::Encode1[(t0      ) & 0xff] & 0x000000ff) ^ round_keys[1];
+    out.put(4, s1);
+
+    s2 = (Tables::Encode2[(t2 >> 24)       ] & 0xff000000) ^
+         (Tables::Encode3[(t3 >> 16) & 0xff] & 0x00ff0000) ^
+         (Tables::Encode0[(t0 >>  8) & 0xff] & 0x0000ff00) ^
+         (Tables::Encode1[(t1      ) & 0xff] & 0x000000ff) ^ round_keys[2];
+    out.put(8, s2);
+
+    s3 = (Tables::Encode2[(t3 >> 24)       ] & 0xff000000) ^
+         (Tables::Encode3[(t0 >> 16) & 0xff] & 0x00ff0000) ^
+         (Tables::Encode0[(t1 >>  8) & 0xff] & 0x0000ff00) ^
+         (Tables::Encode1[(t2      ) & 0xff] & 0x000000ff) ^ round_keys[3];
+    out.put(12, s3);
+    // clang-format on
+}
+
+void AESCipher::decrypt_block(const AESCipherBlock& in, AESCipherBlock& out)
+{
+
+    u32 s0, s1, s2, s3, t0, t1, t2, t3;
+    size_t r { 0 };
+
+    const auto& dec_key = key();
+    const auto* round_keys = dec_key.round_keys();
+
+    s0 = get_key(in.data().offset_pointer(0)) ^ round_keys[0];
+    s1 = get_key(in.data().offset_pointer(4)) ^ round_keys[1];
+    s2 = get_key(in.data().offset_pointer(8)) ^ round_keys[2];
+    s3 = get_key(in.data().offset_pointer(12)) ^ round_keys[3];
+
+    r = dec_key.rounds() >> 1;
+
+    // apply the first |r - 1| rounds
+    for (;;) {
+        // clang-format off
+        t0 = Tables::Decode0[(s0 >> 24)       ] ^
+             Tables::Decode1[(s3 >> 16) & 0xff] ^
+             Tables::Decode2[(s2 >>  8) & 0xff] ^
+             Tables::Decode3[(s1      ) & 0xff] ^ round_keys[4];
+        t1 = Tables::Decode0[(s1 >> 24)       ] ^
+             Tables::Decode1[(s0 >> 16) & 0xff] ^
+             Tables::Decode2[(s3 >>  8) & 0xff] ^
+             Tables::Decode3[(s2      ) & 0xff] ^ round_keys[5];
+        t2 = Tables::Decode0[(s2 >> 24)       ] ^
+             Tables::Decode1[(s1 >> 16) & 0xff] ^
+             Tables::Decode2[(s0 >>  8) & 0xff] ^
+             Tables::Decode3[(s3      ) & 0xff] ^ round_keys[6];
+        t3 = Tables::Decode0[(s3 >> 24)       ] ^
+             Tables::Decode1[(s2 >> 16) & 0xff] ^
+             Tables::Decode2[(s1 >>  8) & 0xff] ^
+             Tables::Decode3[(s0      ) & 0xff] ^ round_keys[7];
+        // clang-format on
+
+        round_keys += 8;
+        --r;
+        if (r == 0)
+            break;
+
+        // clang-format off
+        s0 = Tables::Decode0[(t0 >> 24)       ] ^
+             Tables::Decode1[(t3 >> 16) & 0xff] ^
+             Tables::Decode2[(t2 >>  8) & 0xff] ^
+             Tables::Decode3[(t1      ) & 0xff] ^ round_keys[0];
+        s1 = Tables::Decode0[(t1 >> 24)       ] ^
+             Tables::Decode1[(t0 >> 16) & 0xff] ^
+             Tables::Decode2[(t3 >>  8) & 0xff] ^
+             Tables::Decode3[(t2      ) & 0xff] ^ round_keys[1];
+        s2 = Tables::Decode0[(t2 >> 24)       ] ^
+             Tables::Decode1[(t1 >> 16) & 0xff] ^
+             Tables::Decode2[(t0 >>  8) & 0xff] ^
+             Tables::Decode3[(t3      ) & 0xff] ^ round_keys[2];
+        s3 = Tables::Decode0[(t3 >> 24)       ] ^
+             Tables::Decode1[(t2 >> 16) & 0xff] ^
+             Tables::Decode2[(t1 >>  8) & 0xff] ^
+             Tables::Decode3[(t0      ) & 0xff] ^ round_keys[3];
+        // clang-format on
+    }
+
+    // apply the last round and put the decrypted data into out
+    // clang-format off
+    s0 = ((u32)Tables::Decode4[(t0 >> 24)       ] << 24) ^
+         ((u32)Tables::Decode4[(t3 >> 16) & 0xff] << 16) ^
+         ((u32)Tables::Decode4[(t2 >>  8) & 0xff] <<  8) ^
+         ((u32)Tables::Decode4[(t1      ) & 0xff]      ) ^ round_keys[0];
+    out.put(0, s0);
+
+    s1 = ((u32)Tables::Decode4[(t1 >> 24)       ] << 24) ^
+         ((u32)Tables::Decode4[(t0 >> 16) & 0xff] << 16) ^
+         ((u32)Tables::Decode4[(t3 >>  8) & 0xff] <<  8) ^
+         ((u32)Tables::Decode4[(t2      ) & 0xff]      ) ^ round_keys[1];
+    out.put(4, s1);
+
+    s2 = ((u32)Tables::Decode4[(t2 >> 24)       ] << 24) ^
+         ((u32)Tables::Decode4[(t1 >> 16) & 0xff] << 16) ^
+         ((u32)Tables::Decode4[(t0 >>  8) & 0xff] <<  8) ^
+         ((u32)Tables::Decode4[(t3      ) & 0xff]      ) ^ round_keys[2];
+    out.put(8, s2);
+
+    s3 = ((u32)Tables::Decode4[(t3 >> 24)       ] << 24) ^
+         ((u32)Tables::Decode4[(t2 >> 16) & 0xff] << 16) ^
+         ((u32)Tables::Decode4[(t1 >>  8) & 0xff] <<  8) ^
+         ((u32)Tables::Decode4[(t0      ) & 0xff]      ) ^ round_keys[3];
+    out.put(12, s3);
+    // clang-format on
+}
+
+void AESCipherBlock::overwrite(const ByteBuffer& buffer)
+{
+    overwrite(buffer.data(), buffer.size());
+}
+
+void AESCipherBlock::overwrite(const u8* data, size_t length)
+{
+    ASSERT(length <= m_data.size());
+    m_data.overwrite(0, data, length);
+    if (length < m_data.size()) {
+        switch (padding_mode()) {
+        case PaddingMode::Null:
+            // fill with zeros
+            __builtin_memset(m_data.data() + length, 0, m_data.size() - length);
+            break;
+        case PaddingMode::CMS:
+            // fill with the length of the padding bytes
+            __builtin_memset(m_data.data() + length, m_data.size() - length, m_data.size() - length);
+            break;
+        default:
+            // FIXME: We should handle the rest of the common padding modes
+            ASSERT_NOT_REACHED();
+        }
+    }
+}
+}

Libraries/LibCrypto/Cipher/AES.h

@@ -0,0 +1,2467 @@
+/*
+ * Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/String.h>
+#include <AK/Vector.h>
+#include <LibCrypto/Cipher/Cipher.h>
+#include <LibCrypto/Cipher/Mode/CBC.h>
+
+namespace Crypto {
+struct AESCipherBlock : public CipherBlock {
+public:
+    explicit AESCipherBlock(PaddingMode mode = PaddingMode::CMS)
+        : CipherBlock(mode)
+    {
+        m_data = ByteBuffer::create_zeroed(BLOCK_SIZE / 8);
+    }
+    AESCipherBlock(const u8* data, size_t length, PaddingMode mode = PaddingMode::CMS)
+        : AESCipherBlock(mode)
+    {
+        overwrite(data, length);
+    }
+
+    static size_t block_size() { return BLOCK_SIZE / 8; };
+
+    virtual ByteBuffer get() const override { return m_data; };
+    virtual const ByteBuffer& data() const override { return m_data; };
+
+    virtual void overwrite(const ByteBuffer&) override;
+    virtual void overwrite(const u8* data, size_t length) override;
+
+    virtual void apply_initialization_vector(const u8* ivec) override
+    {
+        for (size_t i = 0; i < block_size(); ++i)
+            m_data[i] ^= ivec[i];
+    }
+
+    String to_string() const;
+
+private:
+    virtual ByteBuffer& data() override { return m_data; };
+
+    static constexpr size_t BLOCK_SIZE = 128;
+    ByteBuffer m_data;
+};
+
+struct AESCipherKey : public CipherKey {
+    virtual ByteBuffer data() const override { return ByteBuffer::copy(m_rd_keys, sizeof(m_rd_keys)); };
+    virtual void expand_encrypt_key(const StringView& user_key, size_t bits) override;
+    virtual void expand_decrypt_key(const StringView& user_key, size_t bits) override;
+    static bool is_valid_key_size(size_t bits) { return bits == 128 || bits == 192 || bits == 256; };
+    String to_string() const;
+    const u32* round_keys() const
+    {
+        return (const u32*)m_rd_keys;
+    }
+
+    AESCipherKey(const StringView& user_key, size_t key_bits, Intent intent)
+    {
+        if (intent == Intent::Encryption)
+            expand_encrypt_key(user_key, key_bits);
+        else
+            expand_decrypt_key(user_key, key_bits);
+    }
+
+    virtual ~AESCipherKey() override {}
+
+    size_t rounds() const { return m_rounds; }
+
+protected:
+    u32* round_keys()
+    {
+        return (u32*)m_rd_keys;
+    }
+
+private:
+    static constexpr size_t MAX_ROUND_COUNT = 14;
+    u32 m_rd_keys[(MAX_ROUND_COUNT + 1) * 4] { 0 };
+    size_t m_rounds;
+};
+
+class AESCipher final : public Cipher<AESCipherKey, AESCipherBlock> {
+public:
+    using CBCMode = CBC<AESCipher>;
+
+    AESCipher(const StringView& user_key, size_t key_bits, Intent intent = Intent::Encryption, PaddingMode mode = PaddingMode::CMS)
+        : Cipher<AESCipherKey, AESCipherBlock>(mode)
+        , m_key(user_key, key_bits, intent)
+    {
+    }
+
+    virtual const AESCipherKey& key() const override { return m_key; };
+    virtual AESCipherKey& key() override { return m_key; };
+
+    virtual void encrypt_block(const BlockType& in, BlockType& out) override;
+    virtual void decrypt_block(const BlockType& in, BlockType& out) override;
+
+protected:
+    AESCipherKey m_key;
+};
+
+namespace Tables {
+    // Encryption constant tables
+    constexpr u32 Encode0[256] = {
+        0xc66363a5U,
+        0xf87c7c84U,
+        0xee777799U,
+        0xf67b7b8dU,
+        0xfff2f20dU,
+        0xd66b6bbdU,
+        0xde6f6fb1U,
+        0x91c5c554U,
+        0x60303050U,
+        0x02010103U,
+        0xce6767a9U,
+        0x562b2b7dU,
+        0xe7fefe19U,
+        0xb5d7d762U,
+        0x4dababe6U,
+        0xec76769aU,
+        0x8fcaca45U,
+        0x1f82829dU,
+        0x89c9c940U,
+        0xfa7d7d87U,
+        0xeffafa15U,
+        0xb25959ebU,
+        0x8e4747c9U,
+        0xfbf0f00bU,
+        0x41adadecU,
+        0xb3d4d467U,
+        0x5fa2a2fdU,
+        0x45afafeaU,
+        0x239c9cbfU,
+        0x53a4a4f7U,
+        0xe4727296U,
+        0x9bc0c05bU,
+        0x75b7b7c2U,
+        0xe1fdfd1cU,
+        0x3d9393aeU,
+        0x4c26266aU,
+        0x6c36365aU,
+        0x7e3f3f41U,
+        0xf5f7f702U,
+        0x83cccc4fU,
+        0x6834345cU,
+        0x51a5a5f4U,
+        0xd1e5e534U,
+        0xf9f1f108U,
+        0xe2717193U,
+        0xabd8d873U,
+        0x62313153U,
+        0x2a15153fU,
+        0x0804040cU,
+        0x95c7c752U,
+        0x46232365U,
+        0x9dc3c35eU,
+        0x30181828U,
+        0x379696a1U,
+        0x0a05050fU,
+        0x2f9a9ab5U,
+        0x0e070709U,
+        0x24121236U,
+        0x1b80809bU,
+        0xdfe2e23dU,
+        0xcdebeb26U,
+        0x4e272769U,
+        0x7fb2b2cdU,
+        0xea75759fU,
+        0x1209091bU,
+        0x1d83839eU,
+        0x582c2c74U,
+        0x341a1a2eU,
+        0x361b1b2dU,
+        0xdc6e6eb2U,
+        0xb45a5aeeU,
+        0x5ba0a0fbU,
+        0xa45252f6U,
+        0x763b3b4dU,
+        0xb7d6d661U,
+        0x7db3b3ceU,
+        0x5229297bU,
+        0xdde3e33eU,
+        0x5e2f2f71U,
+        0x13848497U,
+        0xa65353f5U,
+        0xb9d1d168U,
+        0x00000000U,
+        0xc1eded2cU,
+        0x40202060U,
+        0xe3fcfc1fU,
+        0x79b1b1c8U,
+        0xb65b5bedU,
+        0xd46a6abeU,
+        0x8dcbcb46U,
+        0x67bebed9U,
+        0x7239394bU,
+        0x944a4adeU,
+        0x984c4cd4U,
+        0xb05858e8U,
+        0x85cfcf4aU,
+        0xbbd0d06bU,
+        0xc5efef2aU,
+        0x4faaaae5U,
+        0xedfbfb16U,
+        0x864343c5U,
+        0x9a4d4dd7U,
+        0x66333355U,
+        0x11858594U,
+        0x8a4545cfU,
+        0xe9f9f910U,
+        0x04020206U,
+        0xfe7f7f81U,
+        0xa05050f0U,
+        0x783c3c44U,
+        0x259f9fbaU,
+        0x4ba8a8e3U,
+        0xa25151f3U,
+        0x5da3a3feU,
+        0x804040c0U,
+        0x058f8f8aU,
+        0x3f9292adU,
+        0x219d9dbcU,
+        0x70383848U,
+        0xf1f5f504U,
+        0x63bcbcdfU,
+        0x77b6b6c1U,
+        0xafdada75U,
+        0x42212163U,
+        0x20101030U,
+        0xe5ffff1aU,
+        0xfdf3f30eU,
+        0xbfd2d26dU,
+        0x81cdcd4cU,
+        0x180c0c14U,
+        0x26131335U,
+        0xc3ecec2fU,
+        0xbe5f5fe1U,
+        0x359797a2U,
+        0x884444ccU,
+        0x2e171739U,
+        0x93c4c457U,
+        0x55a7a7f2U,
+        0xfc7e7e82U,
+        0x7a3d3d47U,
+        0xc86464acU,
+        0xba5d5de7U,
+        0x3219192bU,
+        0xe6737395U,
+        0xc06060a0U,
+        0x19818198U,
+        0x9e4f4fd1U,
+        0xa3dcdc7fU,
+        0x44222266U,
+        0x542a2a7eU,
+        0x3b9090abU,
+        0x0b888883U,
+        0x8c4646caU,
+        0xc7eeee29U,
+        0x6bb8b8d3U,
+        0x2814143cU,
+        0xa7dede79U,
+        0xbc5e5ee2U,
+        0x160b0b1dU,
+        0xaddbdb76U,
+        0xdbe0e03bU,
+        0x64323256U,
+        0x743a3a4eU,
+        0x140a0a1eU,
+        0x924949dbU,
+        0x0c06060aU,
+        0x4824246cU,
+        0xb85c5ce4U,
+        0x9fc2c25dU,
+        0xbdd3d36eU,
+        0x43acacefU,
+        0xc46262a6U,
+        0x399191a8U,
+        0x319595a4U,
+        0xd3e4e437U,
+        0xf279798bU,
+        0xd5e7e732U,
+        0x8bc8c843U,
+        0x6e373759U,
+        0xda6d6db7U,
+        0x018d8d8cU,
+        0xb1d5d564U,
+        0x9c4e4ed2U,
+        0x49a9a9e0U,
+        0xd86c6cb4U,
+        0xac5656faU,
+        0xf3f4f407U,
+        0xcfeaea25U,
+        0xca6565afU,
+        0xf47a7a8eU,
+        0x47aeaee9U,
+        0x10080818U,
+        0x6fbabad5U,
+        0xf0787888U,
+        0x4a25256fU,
+        0x5c2e2e72U,
+        0x381c1c24U,
+        0x57a6a6f1U,
+        0x73b4b4c7U,
+        0x97c6c651U,
+        0xcbe8e823U,
+        0xa1dddd7cU,
+        0xe874749cU,
+        0x3e1f1f21U,
+        0x964b4bddU,
+        0x61bdbddcU,
+        0x0d8b8b86U,
+        0x0f8a8a85U,
+        0xe0707090U,
+        0x7c3e3e42U,
+        0x71b5b5c4U,
+        0xcc6666aaU,
+        0x904848d8U,
+        0x06030305U,
+        0xf7f6f601U,
+        0x1c0e0e12U,
+        0xc26161a3U,
+        0x6a35355fU,
+        0xae5757f9U,
+        0x69b9b9d0U,
+        0x17868691U,
+        0x99c1c158U,
+        0x3a1d1d27U,
+        0x279e9eb9U,
+        0xd9e1e138U,
+        0xebf8f813U,
+        0x2b9898b3U,
+        0x22111133U,
+        0xd26969bbU,
+        0xa9d9d970U,
+        0x078e8e89U,
+        0x339494a7U,
+        0x2d9b9bb6U,
+        0x3c1e1e22U,
+        0x15878792U,
+        0xc9e9e920U,
+        0x87cece49U,
+        0xaa5555ffU,
+        0x50282878U,
+        0xa5dfdf7aU,
+        0x038c8c8fU,
+        0x59a1a1f8U,
+        0x09898980U,
+        0x1a0d0d17U,
+        0x65bfbfdaU,
+        0xd7e6e631U,
+        0x844242c6U,
+        0xd06868b8U,
+        0x824141c3U,
+        0x299999b0U,
+        0x5a2d2d77U,
+        0x1e0f0f11U,
+        0x7bb0b0cbU,
+        0xa85454fcU,
+        0x6dbbbbd6U,
+        0x2c16163aU,
+    };
+    constexpr u32 Encode1[256] = {
+        0xa5c66363U,
+        0x84f87c7cU,
+        0x99ee7777U,
+        0x8df67b7bU,
+        0x0dfff2f2U,
+        0xbdd66b6bU,
+        0xb1de6f6fU,
+        0x5491c5c5U,
+        0x50603030U,
+        0x03020101U,
+        0xa9ce6767U,
+        0x7d562b2bU,
+        0x19e7fefeU,
+        0x62b5d7d7U,
+        0xe64dababU,
+        0x9aec7676U,
+        0x458fcacaU,
+        0x9d1f8282U,
+        0x4089c9c9U,
+        0x87fa7d7dU,
+        0x15effafaU,
+        0xebb25959U,
+        0xc98e4747U,
+        0x0bfbf0f0U,
+        0xec41adadU,
+        0x67b3d4d4U,
+        0xfd5fa2a2U,
+        0xea45afafU,
+        0xbf239c9cU,
+        0xf753a4a4U,
+        0x96e47272U,
+        0x5b9bc0c0U,
+        0xc275b7b7U,
+        0x1ce1fdfdU,
+        0xae3d9393U,
+        0x6a4c2626U,
+        0x5a6c3636U,
+        0x417e3f3fU,
+        0x02f5f7f7U,
+        0x4f83ccccU,
+        0x5c683434U,
+        0xf451a5a5U,
+        0x34d1e5e5U,
+        0x08f9f1f1U,
+        0x93e27171U,
+        0x73abd8d8U,
+        0x53623131U,
+        0x3f2a1515U,
+        0x0c080404U,
+        0x5295c7c7U,
+        0x65462323U,
+        0x5e9dc3c3U,
+        0x28301818U,
+        0xa1379696U,
+        0x0f0a0505U,
+        0xb52f9a9aU,
+        0x090e0707U,
+        0x36241212U,
+        0x9b1b8080U,
+        0x3ddfe2e2U,
+        0x26cdebebU,
+        0x694e2727U,
+        0xcd7fb2b2U,
+        0x9fea7575U,
+        0x1b120909U,
+        0x9e1d8383U,
+        0x74582c2cU,
+        0x2e341a1aU,
+        0x2d361b1bU,
+        0xb2dc6e6eU,
+        0xeeb45a5aU,
+        0xfb5ba0a0U,
+        0xf6a45252U,
+        0x4d763b3bU,
+        0x61b7d6d6U,
+        0xce7db3b3U,
+        0x7b522929U,
+        0x3edde3e3U,
+        0x715e2f2fU,
+        0x97138484U,
+        0xf5a65353U,
+        0x68b9d1d1U,
+        0x00000000U,
+        0x2cc1ededU,
+        0x60402020U,
+        0x1fe3fcfcU,
+        0xc879b1b1U,
+        0xedb65b5bU,
+        0xbed46a6aU,
+        0x468dcbcbU,
+        0xd967bebeU,
+        0x4b723939U,
+        0xde944a4aU,
+        0xd4984c4cU,
+        0xe8b05858U,
+        0x4a85cfcfU,
+        0x6bbbd0d0U,
+        0x2ac5efefU,
+        0xe54faaaaU,
+        0x16edfbfbU,
+        0xc5864343U,
+        0xd79a4d4dU,
+        0x55663333U,
+        0x94118585U,
+        0xcf8a4545U,
+        0x10e9f9f9U,
+        0x06040202U,
+        0x81fe7f7fU,
+        0xf0a05050U,
+        0x44783c3cU,
+        0xba259f9fU,
+        0xe34ba8a8U,
+        0xf3a25151U,
+        0xfe5da3a3U,
+        0xc0804040U,
+        0x8a058f8fU,
+        0xad3f9292U,
+        0xbc219d9dU,
+        0x48703838U,
+        0x04f1f5f5U,
+        0xdf63bcbcU,
+        0xc177b6b6U,
+        0x75afdadaU,
+        0x63422121U,
+        0x30201010U,
+        0x1ae5ffffU,
+        0x0efdf3f3U,
+        0x6dbfd2d2U,
+        0x4c81cdcdU,
+        0x14180c0cU,
+        0x35261313U,
+        0x2fc3ececU,
+        0xe1be5f5fU,
+        0xa2359797U,
+        0xcc884444U,
+        0x392e1717U,
+        0x5793c4c4U,
+        0xf255a7a7U,
+        0x82fc7e7eU,
+        0x477a3d3dU,
+        0xacc86464U,
+        0xe7ba5d5dU,
+        0x2b321919U,
+        0x95e67373U,
+        0xa0c06060U,
+        0x98198181U,
+        0xd19e4f4fU,
+        0x7fa3dcdcU,
+        0x66442222U,
+        0x7e542a2aU,
+        0xab3b9090U,
+        0x830b8888U,
+        0xca8c4646U,
+        0x29c7eeeeU,
+        0xd36bb8b8U,
+        0x3c281414U,
+        0x79a7dedeU,
+        0xe2bc5e5eU,
+        0x1d160b0bU,
+        0x76addbdbU,
+        0x3bdbe0e0U,
+        0x56643232U,
+        0x4e743a3aU,
+        0x1e140a0aU,
+        0xdb924949U,
+        0x0a0c0606U,
+        0x6c482424U,
+        0xe4b85c5cU,
+        0x5d9fc2c2U,
+        0x6ebdd3d3U,
+        0xef43acacU,
+        0xa6c46262U,
+        0xa8399191U,
+        0xa4319595U,
+        0x37d3e4e4U,
+        0x8bf27979U,
+        0x32d5e7e7U,
+        0x438bc8c8U,
+        0x596e3737U,
+        0xb7da6d6dU,
+        0x8c018d8dU,
+        0x64b1d5d5U,
+        0xd29c4e4eU,
+        0xe049a9a9U,
+        0xb4d86c6cU,
+        0xfaac5656U,
+        0x07f3f4f4U,
+        0x25cfeaeaU,
+        0xafca6565U,
+        0x8ef47a7aU,
+        0xe947aeaeU,
+        0x18100808U,
+        0xd56fbabaU,
+        0x88f07878U,
+        0x6f4a2525U,
+        0x725c2e2eU,
+        0x24381c1cU,
+        0xf157a6a6U,
+        0xc773b4b4U,
+        0x5197c6c6U,
+        0x23cbe8e8U,
+        0x7ca1ddddU,
+        0x9ce87474U,
+        0x213e1f1fU,
+        0xdd964b4bU,
+        0xdc61bdbdU,
+        0x860d8b8bU,
+        0x850f8a8aU,
+        0x90e07070U,
+        0x427c3e3eU,
+        0xc471b5b5U,
+        0xaacc6666U,
+        0xd8904848U,
+        0x05060303U,
+        0x01f7f6f6U,
+        0x121c0e0eU,
+        0xa3c26161U,
+        0x5f6a3535U,
+        0xf9ae5757U,
+        0xd069b9b9U,
+        0x91178686U,
+        0x5899c1c1U,
+        0x273a1d1dU,
+        0xb9279e9eU,
+        0x38d9e1e1U,
+        0x13ebf8f8U,
+        0xb32b9898U,
+        0x33221111U,
+        0xbbd26969U,
+        0x70a9d9d9U,
+        0x89078e8eU,
+        0xa7339494U,
+        0xb62d9b9bU,
+        0x223c1e1eU,
+        0x92158787U,
+        0x20c9e9e9U,
+        0x4987ceceU,
+        0xffaa5555U,
+        0x78502828U,
+        0x7aa5dfdfU,
+        0x8f038c8cU,
+        0xf859a1a1U,
+        0x80098989U,
+        0x171a0d0dU,
+        0xda65bfbfU,
+        0x31d7e6e6U,
+        0xc6844242U,
+        0xb8d06868U,
+        0xc3824141U,
+        0xb0299999U,
+        0x775a2d2dU,
+        0x111e0f0fU,
+        0xcb7bb0b0U,
+        0xfca85454U,
+        0xd66dbbbbU,
+        0x3a2c1616U,
+    };
+    constexpr u32 Encode2[256] = {
+        0x63a5c663U,
+        0x7c84f87cU,
+        0x7799ee77U,
+        0x7b8df67bU,
+        0xf20dfff2U,
+        0x6bbdd66bU,
+        0x6fb1de6fU,
+        0xc55491c5U,
+        0x30506030U,
+        0x01030201U,
+        0x67a9ce67U,
+        0x2b7d562bU,
+        0xfe19e7feU,
+        0xd762b5d7U,
+        0xabe64dabU,
+        0x769aec76U,
+        0xca458fcaU,
+        0x829d1f82U,
+        0xc94089c9U,
+        0x7d87fa7dU,
+        0xfa15effaU,
+        0x59ebb259U,
+        0x47c98e47U,
+        0xf00bfbf0U,
+        0xadec41adU,
+        0xd467b3d4U,
+        0xa2fd5fa2U,
+        0xafea45afU,
+        0x9cbf239cU,
+        0xa4f753a4U,
+        0x7296e472U,
+        0xc05b9bc0U,
+        0xb7c275b7U,
+        0xfd1ce1fdU,
+        0x93ae3d93U,
+        0x266a4c26U,
+        0x365a6c36U,
+        0x3f417e3fU,
+        0xf702f5f7U,
+        0xcc4f83ccU,
+        0x345c6834U,
+        0xa5f451a5U,
+        0xe534d1e5U,
+        0xf108f9f1U,
+        0x7193e271U,
+        0xd873abd8U,
+        0x31536231U,
+        0x153f2a15U,
+        0x040c0804U,
+        0xc75295c7U,
+        0x23654623U,
+        0xc35e9dc3U,
+        0x18283018U,
+        0x96a13796U,
+        0x050f0a05U,
+        0x9ab52f9aU,
+        0x07090e07U,
+        0x12362412U,
+        0x809b1b80U,
+        0xe23ddfe2U,
+        0xeb26cdebU,
+        0x27694e27U,
+        0xb2cd7fb2U,
+        0x759fea75U,
+        0x091b1209U,
+        0x839e1d83U,
+        0x2c74582cU,
+        0x1a2e341aU,
+        0x1b2d361bU,
+        0x6eb2dc6eU,
+        0x5aeeb45aU,
+        0xa0fb5ba0U,
+        0x52f6a452U,
+        0x3b4d763bU,
+        0xd661b7d6U,
+        0xb3ce7db3U,
+        0x297b5229U,
+        0xe33edde3U,
+        0x2f715e2fU,
+        0x84971384U,
+        0x53f5a653U,
+        0xd168b9d1U,
+        0x00000000U,
+        0xed2cc1edU,
+        0x20604020U,
+        0xfc1fe3fcU,
+        0xb1c879b1U,
+        0x5bedb65bU,
+        0x6abed46aU,
+        0xcb468dcbU,
+        0xbed967beU,
+        0x394b7239U,
+        0x4ade944aU,
+        0x4cd4984cU,
+        0x58e8b058U,
+        0xcf4a85cfU,
+        0xd06bbbd0U,
+        0xef2ac5efU,
+        0xaae54faaU,
+        0xfb16edfbU,
+        0x43c58643U,
+        0x4dd79a4dU,
+        0x33556633U,
+        0x85941185U,
+        0x45cf8a45U,
+        0xf910e9f9U,
+        0x02060402U,
+        0x7f81fe7fU,
+        0x50f0a050U,
+        0x3c44783cU,
+        0x9fba259fU,
+        0xa8e34ba8U,
+        0x51f3a251U,
+        0xa3fe5da3U,
+        0x40c08040U,
+        0x8f8a058fU,
+        0x92ad3f92U,
+        0x9dbc219dU,
+        0x38487038U,
+        0xf504f1f5U,
+        0xbcdf63bcU,
+        0xb6c177b6U,
+        0xda75afdaU,
+        0x21634221U,
+        0x10302010U,
+        0xff1ae5ffU,
+        0xf30efdf3U,
+        0xd26dbfd2U,
+        0xcd4c81cdU,
+        0x0c14180cU,
+        0x13352613U,
+        0xec2fc3ecU,
+        0x5fe1be5fU,
+        0x97a23597U,
+        0x44cc8844U,
+        0x17392e17U,
+        0xc45793c4U,
+        0xa7f255a7U,
+        0x7e82fc7eU,
+        0x3d477a3dU,
+        0x64acc864U,
+        0x5de7ba5dU,
+        0x192b3219U,
+        0x7395e673U,
+        0x60a0c060U,
+        0x81981981U,
+        0x4fd19e4fU,
+        0xdc7fa3dcU,
+        0x22664422U,
+        0x2a7e542aU,
+        0x90ab3b90U,
+        0x88830b88U,
+        0x46ca8c46U,
+        0xee29c7eeU,
+        0xb8d36bb8U,
+        0x143c2814U,
+        0xde79a7deU,
+        0x5ee2bc5eU,
+        0x0b1d160bU,
+        0xdb76addbU,
+        0xe03bdbe0U,
+        0x32566432U,
+        0x3a4e743aU,
+        0x0a1e140aU,
+        0x49db9249U,
+        0x060a0c06U,
+        0x246c4824U,
+        0x5ce4b85cU,
+        0xc25d9fc2U,
+        0xd36ebdd3U,
+        0xacef43acU,
+        0x62a6c462U,
+        0x91a83991U,
+        0x95a43195U,
+        0xe437d3e4U,
+        0x798bf279U,
+        0xe732d5e7U,
+        0xc8438bc8U,
+        0x37596e37U,
+        0x6db7da6dU,
+        0x8d8c018dU,
+        0xd564b1d5U,
+        0x4ed29c4eU,
+        0xa9e049a9U,
+        0x6cb4d86cU,
+        0x56faac56U,
+        0xf407f3f4U,
+        0xea25cfeaU,
+        0x65afca65U,
+        0x7a8ef47aU,
+        0xaee947aeU,
+        0x08181008U,
+        0xbad56fbaU,
+        0x7888f078U,
+        0x256f4a25U,
+        0x2e725c2eU,
+        0x1c24381cU,
+        0xa6f157a6U,
+        0xb4c773b4U,
+        0xc65197c6U,
+        0xe823cbe8U,
+        0xdd7ca1ddU,
+        0x749ce874U,
+        0x1f213e1fU,
+        0x4bdd964bU,
+        0xbddc61bdU,
+        0x8b860d8bU,
+        0x8a850f8aU,
+        0x7090e070U,
+        0x3e427c3eU,
+        0xb5c471b5U,
+        0x66aacc66U,
+        0x48d89048U,
+        0x03050603U,
+        0xf601f7f6U,
+        0x0e121c0eU,
+        0x61a3c261U,
+        0x355f6a35U,
+        0x57f9ae57U,
+        0xb9d069b9U,
+        0x86911786U,
+        0xc15899c1U,
+        0x1d273a1dU,
+        0x9eb9279eU,
+        0xe138d9e1U,
+        0xf813ebf8U,
+        0x98b32b98U,
+        0x11332211U,
+        0x69bbd269U,
+        0xd970a9d9U,
+        0x8e89078eU,
+        0x94a73394U,
+        0x9bb62d9bU,
+        0x1e223c1eU,
+        0x87921587U,
+        0xe920c9e9U,
+        0xce4987ceU,
+        0x55ffaa55U,
+        0x28785028U,
+        0xdf7aa5dfU,
+        0x8c8f038cU,
+        0xa1f859a1U,
+        0x89800989U,
+        0x0d171a0dU,
+        0xbfda65bfU,
+        0xe631d7e6U,
+        0x42c68442U,
+        0x68b8d068U,
+        0x41c38241U,
+        0x99b02999U,
+        0x2d775a2dU,
+        0x0f111e0fU,
+        0xb0cb7bb0U,
+        0x54fca854U,
+        0xbbd66dbbU,
+        0x163a2c16U,
+    };
+    constexpr u32 Encode3[256] = {
+        0x6363a5c6U,
+        0x7c7c84f8U,
+        0x777799eeU,
+        0x7b7b8df6U,
+        0xf2f20dffU,
+        0x6b6bbdd6U,
+        0x6f6fb1deU,
+        0xc5c55491U,
+        0x30305060U,
+        0x01010302U,
+        0x6767a9ceU,
+        0x2b2b7d56U,
+        0xfefe19e7U,
+        0xd7d762b5U,
+        0xababe64dU,
+        0x76769aecU,
+        0xcaca458fU,
+        0x82829d1fU,
+        0xc9c94089U,
+        0x7d7d87faU,
+        0xfafa15efU,
+        0x5959ebb2U,
+        0x4747c98eU,
+        0xf0f00bfbU,
+        0xadadec41U,
+        0xd4d467b3U,
+        0xa2a2fd5fU,
+        0xafafea45U,
+        0x9c9cbf23U,
+        0xa4a4f753U,
+        0x727296e4U,
+        0xc0c05b9bU,
+        0xb7b7c275U,
+        0xfdfd1ce1U,
+        0x9393ae3dU,
+        0x26266a4cU,
+        0x36365a6cU,
+        0x3f3f417eU,
+        0xf7f702f5U,
+        0xcccc4f83U,
+        0x34345c68U,
+        0xa5a5f451U,
+        0xe5e534d1U,
+        0xf1f108f9U,
+        0x717193e2U,
+        0xd8d873abU,
+        0x31315362U,
+        0x15153f2aU,
+        0x04040c08U,
+        0xc7c75295U,
+        0x23236546U,
+        0xc3c35e9dU,
+        0x18182830U,
+        0x9696a137U,
+        0x05050f0aU,
+        0x9a9ab52fU,
+        0x0707090eU,
+        0x12123624U,
+        0x80809b1bU,
+        0xe2e23ddfU,
+        0xebeb26cdU,
+        0x2727694eU,
+        0xb2b2cd7fU,
+        0x75759feaU,
+        0x09091b12U,
+        0x83839e1dU,
+        0x2c2c7458U,
+        0x1a1a2e34U,
+        0x1b1b2d36U,
+        0x6e6eb2dcU,
+        0x5a5aeeb4U,
+        0xa0a0fb5bU,
+        0x5252f6a4U,
+        0x3b3b4d76U,
+        0xd6d661b7U,
+        0xb3b3ce7dU,
+        0x29297b52U,
+        0xe3e33eddU,
+        0x2f2f715eU,
+        0x84849713U,
+        0x5353f5a6U,
+        0xd1d168b9U,
+        0x00000000U,
+        0xeded2cc1U,
+        0x20206040U,
+        0xfcfc1fe3U,
+        0xb1b1c879U,
+        0x5b5bedb6U,
+        0x6a6abed4U,
+        0xcbcb468dU,
+        0xbebed967U,
+        0x39394b72U,
+        0x4a4ade94U,
+        0x4c4cd498U,
+        0x5858e8b0U,
+        0xcfcf4a85U,
+        0xd0d06bbbU,
+        0xefef2ac5U,
+        0xaaaae54fU,
+        0xfbfb16edU,
+        0x4343c586U,
+        0x4d4dd79aU,
+        0x33335566U,
+        0x85859411U,
+        0x4545cf8aU,
+        0xf9f910e9U,
+        0x02020604U,
+        0x7f7f81feU,
+        0x5050f0a0U,
+        0x3c3c4478U,
+        0x9f9fba25U,
+        0xa8a8e34bU,
+        0x5151f3a2U,
+        0xa3a3fe5dU,
+        0x4040c080U,
+        0x8f8f8a05U,
+        0x9292ad3fU,
+        0x9d9dbc21U,
+        0x38384870U,
+        0xf5f504f1U,
+        0xbcbcdf63U,
+        0xb6b6c177U,
+        0xdada75afU,
+        0x21216342U,
+        0x10103020U,
+        0xffff1ae5U,
+        0xf3f30efdU,
+        0xd2d26dbfU,
+        0xcdcd4c81U,
+        0x0c0c1418U,
+        0x13133526U,
+        0xecec2fc3U,
+        0x5f5fe1beU,
+        0x9797a235U,
+        0x4444cc88U,
+        0x1717392eU,
+        0xc4c45793U,
+        0xa7a7f255U,
+        0x7e7e82fcU,
+        0x3d3d477aU,
+        0x6464acc8U,
+        0x5d5de7baU,
+        0x19192b32U,
+        0x737395e6U,
+        0x6060a0c0U,
+        0x81819819U,
+        0x4f4fd19eU,
+        0xdcdc7fa3U,
+        0x22226644U,
+        0x2a2a7e54U,
+        0x9090ab3bU,
+        0x8888830bU,
+        0x4646ca8cU,
+        0xeeee29c7U,
+        0xb8b8d36bU,
+        0x14143c28U,
+        0xdede79a7U,
+        0x5e5ee2bcU,
+        0x0b0b1d16U,
+        0xdbdb76adU,
+        0xe0e03bdbU,
+        0x32325664U,
+        0x3a3a4e74U,
+        0x0a0a1e14U,
+        0x4949db92U,
+        0x06060a0cU,
+        0x24246c48U,
+        0x5c5ce4b8U,
+        0xc2c25d9fU,
+        0xd3d36ebdU,
+        0xacacef43U,
+        0x6262a6c4U,
+        0x9191a839U,
+        0x9595a431U,
+        0xe4e437d3U,
+        0x79798bf2U,
+        0xe7e732d5U,
+        0xc8c8438bU,
+        0x3737596eU,
+        0x6d6db7daU,
+        0x8d8d8c01U,
+        0xd5d564b1U,
+        0x4e4ed29cU,
+        0xa9a9e049U,
+        0x6c6cb4d8U,
+        0x5656faacU,
+        0xf4f407f3U,
+        0xeaea25cfU,
+        0x6565afcaU,
+        0x7a7a8ef4U,
+        0xaeaee947U,
+        0x08081810U,
+        0xbabad56fU,
+        0x787888f0U,
+        0x25256f4aU,
+        0x2e2e725cU,
+        0x1c1c2438U,
+        0xa6a6f157U,
+        0xb4b4c773U,
+        0xc6c65197U,
+        0xe8e823cbU,
+        0xdddd7ca1U,
+        0x74749ce8U,
+        0x1f1f213eU,
+        0x4b4bdd96U,
+        0xbdbddc61U,
+        0x8b8b860dU,
+        0x8a8a850fU,
+        0x707090e0U,
+        0x3e3e427cU,
+        0xb5b5c471U,
+        0x6666aaccU,
+        0x4848d890U,
+        0x03030506U,
+        0xf6f601f7U,
+        0x0e0e121cU,
+        0x6161a3c2U,
+        0x35355f6aU,
+        0x5757f9aeU,
+        0xb9b9d069U,
+        0x86869117U,
+        0xc1c15899U,
+        0x1d1d273aU,
+        0x9e9eb927U,
+        0xe1e138d9U,
+        0xf8f813ebU,
+        0x9898b32bU,
+        0x11113322U,
+        0x6969bbd2U,
+        0xd9d970a9U,
+        0x8e8e8907U,
+        0x9494a733U,
+        0x9b9bb62dU,
+        0x1e1e223cU,
+        0x87879215U,
+        0xe9e920c9U,
+        0xcece4987U,
+        0x5555ffaaU,
+        0x28287850U,
+        0xdfdf7aa5U,
+        0x8c8c8f03U,
+        0xa1a1f859U,
+        0x89898009U,
+        0x0d0d171aU,
+        0xbfbfda65U,
+        0xe6e631d7U,
+        0x4242c684U,
+        0x6868b8d0U,
+        0x4141c382U,
+        0x9999b029U,
+        0x2d2d775aU,
+        0x0f0f111eU,
+        0xb0b0cb7bU,
+        0x5454fca8U,
+        0xbbbbd66dU,
+        0x16163a2cU,
+    };
+
+    // Decryption constant tables
+    constexpr u32 Decode0[256] = {
+        0x51f4a750U,
+        0x7e416553U,
+        0x1a17a4c3U,
+        0x3a275e96U,
+        0x3bab6bcbU,
+        0x1f9d45f1U,
+        0xacfa58abU,
+        0x4be30393U,
+        0x2030fa55U,
+        0xad766df6U,
+        0x88cc7691U,
+        0xf5024c25U,
+        0x4fe5d7fcU,
+        0xc52acbd7U,
+        0x26354480U,
+        0xb562a38fU,
+        0xdeb15a49U,
+        0x25ba1b67U,
+        0x45ea0e98U,
+        0x5dfec0e1U,
+        0xc32f7502U,
+        0x814cf012U,
+        0x8d4697a3U,
+        0x6bd3f9c6U,
+        0x038f5fe7U,
+        0x15929c95U,
+        0xbf6d7aebU,
+        0x955259daU,
+        0xd4be832dU,
+        0x587421d3U,
+        0x49e06929U,
+        0x8ec9c844U,
+        0x75c2896aU,
+        0xf48e7978U,
+        0x99583e6bU,
+        0x27b971ddU,
+        0xbee14fb6U,
+        0xf088ad17U,
+        0xc920ac66U,
+        0x7dce3ab4U,
+        0x63df4a18U,
+        0xe51a3182U,
+        0x97513360U,
+        0x62537f45U,
+        0xb16477e0U,
+        0xbb6bae84U,
+        0xfe81a01cU,
+        0xf9082b94U,
+        0x70486858U,
+        0x8f45fd19U,
+        0x94de6c87U,
+        0x527bf8b7U,
+        0xab73d323U,
+        0x724b02e2U,
+        0xe31f8f57U,
+        0x6655ab2aU,
+        0xb2eb2807U,
+        0x2fb5c203U,
+        0x86c57b9aU,
+        0xd33708a5U,
+        0x302887f2U,
+        0x23bfa5b2U,
+        0x02036abaU,
+        0xed16825cU,
+        0x8acf1c2bU,
+        0xa779b492U,
+        0xf307f2f0U,
+        0x4e69e2a1U,
+        0x65daf4cdU,
+        0x0605bed5U,
+        0xd134621fU,
+        0xc4a6fe8aU,
+        0x342e539dU,
+        0xa2f355a0U,
+        0x058ae132U,
+        0xa4f6eb75U,
+        0x0b83ec39U,
+        0x4060efaaU,
+        0x5e719f06U,
+        0xbd6e1051U,
+        0x3e218af9U,
+        0x96dd063dU,
+        0xdd3e05aeU,
+        0x4de6bd46U,
+        0x91548db5U,
+        0x71c45d05U,
+        0x0406d46fU,
+        0x605015ffU,
+        0x1998fb24U,
+        0xd6bde997U,
+        0x894043ccU,
+        0x67d99e77U,
+        0xb0e842bdU,
+        0x07898b88U,
+        0xe7195b38U,
+        0x79c8eedbU,
+        0xa17c0a47U,
+        0x7c420fe9U,
+        0xf8841ec9U,
+        0x00000000U,
+        0x09808683U,
+        0x322bed48U,
+        0x1e1170acU,
+        0x6c5a724eU,
+        0xfd0efffbU,
+        0x0f853856U,
+        0x3daed51eU,
+        0x362d3927U,
+        0x0a0fd964U,
+        0x685ca621U,
+        0x9b5b54d1U,
+        0x24362e3aU,
+        0x0c0a67b1U,
+        0x9357e70fU,
+        0xb4ee96d2U,
+        0x1b9b919eU,
+        0x80c0c54fU,
+        0x61dc20a2U,
+        0x5a774b69U,
+        0x1c121a16U,
+        0xe293ba0aU,
+        0xc0a02ae5U,
+        0x3c22e043U,
+        0x121b171dU,
+        0x0e090d0bU,
+        0xf28bc7adU,
+        0x2db6a8b9U,
+        0x141ea9c8U,
+        0x57f11985U,
+        0xaf75074cU,
+        0xee99ddbbU,
+        0xa37f60fdU,
+        0xf701269fU,
+        0x5c72f5bcU,
+        0x44663bc5U,
+        0x5bfb7e34U,
+        0x8b432976U,
+        0xcb23c6dcU,
+        0xb6edfc68U,
+        0xb8e4f163U,
+        0xd731dccaU,
+        0x42638510U,
+        0x13972240U,
+        0x84c61120U,
+        0x854a247dU,
+        0xd2bb3df8U,
+        0xaef93211U,
+        0xc729a16dU,
+        0x1d9e2f4bU,
+        0xdcb230f3U,
+        0x0d8652ecU,
+        0x77c1e3d0U,
+        0x2bb3166cU,
+        0xa970b999U,
+        0x119448faU,
+        0x47e96422U,
+        0xa8fc8cc4U,
+        0xa0f03f1aU,
+        0x567d2cd8U,
+        0x223390efU,
+        0x87494ec7U,
+        0xd938d1c1U,
+        0x8ccaa2feU,
+        0x98d40b36U,
+        0xa6f581cfU,
+        0xa57ade28U,
+        0xdab78e26U,
+        0x3fadbfa4U,
+        0x2c3a9de4U,
+        0x5078920dU,
+        0x6a5fcc9bU,
+        0x547e4662U,
+        0xf68d13c2U,
+        0x90d8b8e8U,
+        0x2e39f75eU,
+        0x82c3aff5U,
+        0x9f5d80beU,
+        0x69d0937cU,
+        0x6fd52da9U,
+        0xcf2512b3U,
+        0xc8ac993bU,
+        0x10187da7U,
+        0xe89c636eU,
+        0xdb3bbb7bU,
+        0xcd267809U,
+        0x6e5918f4U,
+        0xec9ab701U,
+        0x834f9aa8U,
+        0xe6956e65U,
+        0xaaffe67eU,
+        0x21bccf08U,
+        0xef15e8e6U,
+        0xbae79bd9U,
+        0x4a6f36ceU,
+        0xea9f09d4U,
+        0x29b07cd6U,
+        0x31a4b2afU,
+        0x2a3f2331U,
+        0xc6a59430U,
+        0x35a266c0U,
+        0x744ebc37U,
+        0xfc82caa6U,
+        0xe090d0b0U,
+        0x33a7d815U,
+        0xf104984aU,
+        0x41ecdaf7U,
+        0x7fcd500eU,
+        0x1791f62fU,
+        0x764dd68dU,
+        0x43efb04dU,
+        0xccaa4d54U,
+        0xe49604dfU,
+        0x9ed1b5e3U,
+        0x4c6a881bU,
+        0xc12c1fb8U,
+        0x4665517fU,
+        0x9d5eea04U,
+        0x018c355dU,
+        0xfa877473U,
+        0xfb0b412eU,
+        0xb3671d5aU,
+        0x92dbd252U,
+        0xe9105633U,
+        0x6dd64713U,
+        0x9ad7618cU,
+        0x37a10c7aU,
+        0x59f8148eU,
+        0xeb133c89U,
+        0xcea927eeU,
+        0xb761c935U,
+        0xe11ce5edU,
+        0x7a47b13cU,
+        0x9cd2df59U,
+        0x55f2733fU,
+        0x1814ce79U,
+        0x73c737bfU,
+        0x53f7cdeaU,
+        0x5ffdaa5bU,
+        0xdf3d6f14U,
+        0x7844db86U,
+        0xcaaff381U,
+        0xb968c43eU,
+        0x3824342cU,
+        0xc2a3405fU,
+        0x161dc372U,
+        0xbce2250cU,
+        0x283c498bU,
+        0xff0d9541U,
+        0x39a80171U,
+        0x080cb3deU,
+        0xd8b4e49cU,
+        0x6456c190U,
+        0x7bcb8461U,
+        0xd532b670U,
+        0x486c5c74U,
+        0xd0b85742U,
+    };
+    constexpr u32 Decode1[256] = {
+        0x5051f4a7U,
+        0x537e4165U,
+        0xc31a17a4U,
+        0x963a275eU,
+        0xcb3bab6bU,
+        0xf11f9d45U,
+        0xabacfa58U,
+        0x934be303U,
+        0x552030faU,
+        0xf6ad766dU,
+        0x9188cc76U,
+        0x25f5024cU,
+        0xfc4fe5d7U,
+        0xd7c52acbU,
+        0x80263544U,
+        0x8fb562a3U,
+        0x49deb15aU,
+        0x6725ba1bU,
+        0x9845ea0eU,
+        0xe15dfec0U,
+        0x02c32f75U,
+        0x12814cf0U,
+        0xa38d4697U,
+        0xc66bd3f9U,
+        0xe7038f5fU,
+        0x9515929cU,
+        0xebbf6d7aU,
+        0xda955259U,
+        0x2dd4be83U,
+        0xd3587421U,
+        0x2949e069U,
+        0x448ec9c8U,
+        0x6a75c289U,
+        0x78f48e79U,
+        0x6b99583eU,
+        0xdd27b971U,
+        0xb6bee14fU,
+        0x17f088adU,
+        0x66c920acU,
+        0xb47dce3aU,
+        0x1863df4aU,
+        0x82e51a31U,
+        0x60975133U,
+        0x4562537fU,
+        0xe0b16477U,
+        0x84bb6baeU,
+        0x1cfe81a0U,
+        0x94f9082bU,
+        0x58704868U,
+        0x198f45fdU,
+        0x8794de6cU,
+        0xb7527bf8U,
+        0x23ab73d3U,
+        0xe2724b02U,
+        0x57e31f8fU,
+        0x2a6655abU,
+        0x07b2eb28U,
+        0x032fb5c2U,
+        0x9a86c57bU,
+        0xa5d33708U,
+        0xf2302887U,
+        0xb223bfa5U,
+        0xba02036aU,
+        0x5ced1682U,
+        0x2b8acf1cU,
+        0x92a779b4U,
+        0xf0f307f2U,
+        0xa14e69e2U,
+        0xcd65daf4U,
+        0xd50605beU,
+        0x1fd13462U,
+        0x8ac4a6feU,
+        0x9d342e53U,
+        0xa0a2f355U,
+        0x32058ae1U,
+        0x75a4f6ebU,
+        0x390b83ecU,
+        0xaa4060efU,
+        0x065e719fU,
+        0x51bd6e10U,
+        0xf93e218aU,
+        0x3d96dd06U,
+        0xaedd3e05U,
+        0x464de6bdU,
+        0xb591548dU,
+        0x0571c45dU,
+        0x6f0406d4U,
+        0xff605015U,
+        0x241998fbU,
+        0x97d6bde9U,
+        0xcc894043U,
+        0x7767d99eU,
+        0xbdb0e842U,
+        0x8807898bU,
+        0x38e7195bU,
+        0xdb79c8eeU,
+        0x47a17c0aU,
+        0xe97c420fU,
+        0xc9f8841eU,
+        0x00000000U,
+        0x83098086U,
+        0x48322bedU,
+        0xac1e1170U,
+        0x4e6c5a72U,
+        0xfbfd0effU,
+        0x560f8538U,
+        0x1e3daed5U,
+        0x27362d39U,
+        0x640a0fd9U,
+        0x21685ca6U,
+        0xd19b5b54U,
+        0x3a24362eU,
+        0xb10c0a67U,
+        0x0f9357e7U,
+        0xd2b4ee96U,
+        0x9e1b9b91U,
+        0x4f80c0c5U,
+        0xa261dc20U,
+        0x695a774bU,
+        0x161c121aU,
+        0x0ae293baU,
+        0xe5c0a02aU,
+        0x433c22e0U,
+        0x1d121b17U,
+        0x0b0e090dU,
+        0xadf28bc7U,
+        0xb92db6a8U,
+        0xc8141ea9U,
+        0x8557f119U,
+        0x4caf7507U,
+        0xbbee99ddU,
+        0xfda37f60U,
+        0x9ff70126U,
+        0xbc5c72f5U,
+        0xc544663bU,
+        0x345bfb7eU,
+        0x768b4329U,
+        0xdccb23c6U,
+        0x68b6edfcU,
+        0x63b8e4f1U,
+        0xcad731dcU,
+        0x10426385U,
+        0x40139722U,
+        0x2084c611U,
+        0x7d854a24U,
+        0xf8d2bb3dU,
+        0x11aef932U,
+        0x6dc729a1U,
+        0x4b1d9e2fU,
+        0xf3dcb230U,
+        0xec0d8652U,
+        0xd077c1e3U,
+        0x6c2bb316U,
+        0x99a970b9U,
+        0xfa119448U,
+        0x2247e964U,
+        0xc4a8fc8cU,
+        0x1aa0f03fU,
+        0xd8567d2cU,
+        0xef223390U,
+        0xc787494eU,
+        0xc1d938d1U,
+        0xfe8ccaa2U,
+        0x3698d40bU,
+        0xcfa6f581U,
+        0x28a57adeU,
+        0x26dab78eU,
+        0xa43fadbfU,
+        0xe42c3a9dU,
+        0x0d507892U,
+        0x9b6a5fccU,
+        0x62547e46U,
+        0xc2f68d13U,
+        0xe890d8b8U,
+        0x5e2e39f7U,
+        0xf582c3afU,
+        0xbe9f5d80U,
+        0x7c69d093U,
+        0xa96fd52dU,
+        0xb3cf2512U,
+        0x3bc8ac99U,
+        0xa710187dU,
+        0x6ee89c63U,
+        0x7bdb3bbbU,
+        0x09cd2678U,
+        0xf46e5918U,
+        0x01ec9ab7U,
+        0xa8834f9aU,
+        0x65e6956eU,
+        0x7eaaffe6U,
+        0x0821bccfU,
+        0xe6ef15e8U,
+        0xd9bae79bU,
+        0xce4a6f36U,
+        0xd4ea9f09U,
+        0xd629b07cU,
+        0xaf31a4b2U,
+        0x312a3f23U,
+        0x30c6a594U,
+        0xc035a266U,
+        0x37744ebcU,
+        0xa6fc82caU,
+        0xb0e090d0U,
+        0x1533a7d8U,
+        0x4af10498U,
+        0xf741ecdaU,
+        0x0e7fcd50U,
+        0x2f1791f6U,
+        0x8d764dd6U,
+        0x4d43efb0U,
+        0x54ccaa4dU,
+        0xdfe49604U,
+        0xe39ed1b5U,
+        0x1b4c6a88U,
+        0xb8c12c1fU,
+        0x7f466551U,
+        0x049d5eeaU,
+        0x5d018c35U,
+        0x73fa8774U,
+        0x2efb0b41U,
+        0x5ab3671dU,
+        0x5292dbd2U,
+        0x33e91056U,
+        0x136dd647U,
+        0x8c9ad761U,
+        0x7a37a10cU,
+        0x8e59f814U,
+        0x89eb133cU,
+        0xeecea927U,
+        0x35b761c9U,
+        0xede11ce5U,
+        0x3c7a47b1U,
+        0x599cd2dfU,
+        0x3f55f273U,
+        0x791814ceU,
+        0xbf73c737U,
+        0xea53f7cdU,
+        0x5b5ffdaaU,
+        0x14df3d6fU,
+        0x867844dbU,
+        0x81caaff3U,
+        0x3eb968c4U,
+        0x2c382434U,
+        0x5fc2a340U,
+        0x72161dc3U,
+        0x0cbce225U,
+        0x8b283c49U,
+        0x41ff0d95U,
+        0x7139a801U,
+        0xde080cb3U,
+        0x9cd8b4e4U,
+        0x906456c1U,
+        0x617bcb84U,
+        0x70d532b6U,
+        0x74486c5cU,
+        0x42d0b857U,
+    };
+    constexpr u32 Decode2[256] = {
+        0xa75051f4U,
+        0x65537e41U,
+        0xa4c31a17U,
+        0x5e963a27U,
+        0x6bcb3babU,
+        0x45f11f9dU,
+        0x58abacfaU,
+        0x03934be3U,
+        0xfa552030U,
+        0x6df6ad76U,
+        0x769188ccU,
+        0x4c25f502U,
+        0xd7fc4fe5U,
+        0xcbd7c52aU,
+        0x44802635U,
+        0xa38fb562U,
+        0x5a49deb1U,
+        0x1b6725baU,
+        0x0e9845eaU,
+        0xc0e15dfeU,
+        0x7502c32fU,
+        0xf012814cU,
+        0x97a38d46U,
+        0xf9c66bd3U,
+        0x5fe7038fU,
+        0x9c951592U,
+        0x7aebbf6dU,
+        0x59da9552U,
+        0x832dd4beU,
+        0x21d35874U,
+        0x692949e0U,
+        0xc8448ec9U,
+        0x896a75c2U,
+        0x7978f48eU,
+        0x3e6b9958U,
+        0x71dd27b9U,
+        0x4fb6bee1U,
+        0xad17f088U,
+        0xac66c920U,
+        0x3ab47dceU,
+        0x4a1863dfU,
+        0x3182e51aU,
+        0x33609751U,
+        0x7f456253U,
+        0x77e0b164U,
+        0xae84bb6bU,
+        0xa01cfe81U,
+        0x2b94f908U,
+        0x68587048U,
+        0xfd198f45U,
+        0x6c8794deU,
+        0xf8b7527bU,
+        0xd323ab73U,
+        0x02e2724bU,
+        0x8f57e31fU,
+        0xab2a6655U,
+        0x2807b2ebU,
+        0xc2032fb5U,
+        0x7b9a86c5U,
+        0x08a5d337U,
+        0x87f23028U,
+        0xa5b223bfU,
+        0x6aba0203U,
+        0x825ced16U,
+        0x1c2b8acfU,
+        0xb492a779U,
+        0xf2f0f307U,
+        0xe2a14e69U,
+        0xf4cd65daU,
+        0xbed50605U,
+        0x621fd134U,
+        0xfe8ac4a6U,
+        0x539d342eU,
+        0x55a0a2f3U,
+        0xe132058aU,
+        0xeb75a4f6U,
+        0xec390b83U,
+        0xefaa4060U,
+        0x9f065e71U,
+        0x1051bd6eU,
+        0x8af93e21U,
+        0x063d96ddU,
+        0x05aedd3eU,
+        0xbd464de6U,
+        0x8db59154U,
+        0x5d0571c4U,
+        0xd46f0406U,
+        0x15ff6050U,
+        0xfb241998U,
+        0xe997d6bdU,
+        0x43cc8940U,
+        0x9e7767d9U,
+        0x42bdb0e8U,
+        0x8b880789U,
+        0x5b38e719U,
+        0xeedb79c8U,
+        0x0a47a17cU,
+        0x0fe97c42U,
+        0x1ec9f884U,
+        0x00000000U,
+        0x86830980U,
+        0xed48322bU,
+        0x70ac1e11U,
+        0x724e6c5aU,
+        0xfffbfd0eU,
+        0x38560f85U,
+        0xd51e3daeU,
+        0x3927362dU,
+        0xd9640a0fU,
+        0xa621685cU,
+        0x54d19b5bU,
+        0x2e3a2436U,
+        0x67b10c0aU,
+        0xe70f9357U,
+        0x96d2b4eeU,
+        0x919e1b9bU,
+        0xc54f80c0U,
+        0x20a261dcU,
+        0x4b695a77U,
+        0x1a161c12U,
+        0xba0ae293U,
+        0x2ae5c0a0U,
+        0xe0433c22U,
+        0x171d121bU,
+        0x0d0b0e09U,
+        0xc7adf28bU,
+        0xa8b92db6U,
+        0xa9c8141eU,
+        0x198557f1U,
+        0x074caf75U,
+        0xddbbee99U,
+        0x60fda37fU,
+        0x269ff701U,
+        0xf5bc5c72U,
+        0x3bc54466U,
+        0x7e345bfbU,
+        0x29768b43U,
+        0xc6dccb23U,
+        0xfc68b6edU,
+        0xf163b8e4U,
+        0xdccad731U,
+        0x85104263U,
+        0x22401397U,
+        0x112084c6U,
+        0x247d854aU,
+        0x3df8d2bbU,
+        0x3211aef9U,
+        0xa16dc729U,
+        0x2f4b1d9eU,
+        0x30f3dcb2U,
+        0x52ec0d86U,
+        0xe3d077c1U,
+        0x166c2bb3U,
+        0xb999a970U,
+        0x48fa1194U,
+        0x642247e9U,
+        0x8cc4a8fcU,
+        0x3f1aa0f0U,
+        0x2cd8567dU,
+        0x90ef2233U,
+        0x4ec78749U,
+        0xd1c1d938U,
+        0xa2fe8ccaU,
+        0x0b3698d4U,
+        0x81cfa6f5U,
+        0xde28a57aU,
+        0x8e26dab7U,
+        0xbfa43fadU,
+        0x9de42c3aU,
+        0x920d5078U,
+        0xcc9b6a5fU,
+        0x4662547eU,
+        0x13c2f68dU,
+        0xb8e890d8U,
+        0xf75e2e39U,
+        0xaff582c3U,
+        0x80be9f5dU,
+        0x937c69d0U,
+        0x2da96fd5U,
+        0x12b3cf25U,
+        0x993bc8acU,
+        0x7da71018U,
+        0x636ee89cU,
+        0xbb7bdb3bU,
+        0x7809cd26U,
+        0x18f46e59U,
+        0xb701ec9aU,
+        0x9aa8834fU,
+        0x6e65e695U,
+        0xe67eaaffU,
+        0xcf0821bcU,
+        0xe8e6ef15U,
+        0x9bd9bae7U,
+        0x36ce4a6fU,
+        0x09d4ea9fU,
+        0x7cd629b0U,
+        0xb2af31a4U,
+        0x23312a3fU,
+        0x9430c6a5U,
+        0x66c035a2U,
+        0xbc37744eU,
+        0xcaa6fc82U,
+        0xd0b0e090U,
+        0xd81533a7U,
+        0x984af104U,
+        0xdaf741ecU,
+        0x500e7fcdU,
+        0xf62f1791U,
+        0xd68d764dU,
+        0xb04d43efU,
+        0x4d54ccaaU,
+        0x04dfe496U,
+        0xb5e39ed1U,
+        0x881b4c6aU,
+        0x1fb8c12cU,
+        0x517f4665U,
+        0xea049d5eU,
+        0x355d018cU,
+        0x7473fa87U,
+        0x412efb0bU,
+        0x1d5ab367U,
+        0xd25292dbU,
+        0x5633e910U,
+        0x47136dd6U,
+        0x618c9ad7U,
+        0x0c7a37a1U,
+        0x148e59f8U,
+        0x3c89eb13U,
+        0x27eecea9U,
+        0xc935b761U,
+        0xe5ede11cU,
+        0xb13c7a47U,
+        0xdf599cd2U,
+        0x733f55f2U,
+        0xce791814U,
+        0x37bf73c7U,
+        0xcdea53f7U,
+        0xaa5b5ffdU,
+        0x6f14df3dU,
+        0xdb867844U,
+        0xf381caafU,
+        0xc43eb968U,
+        0x342c3824U,
+        0x405fc2a3U,
+        0xc372161dU,
+        0x250cbce2U,
+        0x498b283cU,
+        0x9541ff0dU,
+        0x017139a8U,
+        0xb3de080cU,
+        0xe49cd8b4U,
+        0xc1906456U,
+        0x84617bcbU,
+        0xb670d532U,
+        0x5c74486cU,
+        0x5742d0b8U,
+    };
+    constexpr u32 Decode3[256] = {
+        0xf4a75051U,
+        0x4165537eU,
+        0x17a4c31aU,
+        0x275e963aU,
+        0xab6bcb3bU,
+        0x9d45f11fU,
+        0xfa58abacU,
+        0xe303934bU,
+        0x30fa5520U,
+        0x766df6adU,
+        0xcc769188U,
+        0x024c25f5U,
+        0xe5d7fc4fU,
+        0x2acbd7c5U,
+        0x35448026U,
+        0x62a38fb5U,
+        0xb15a49deU,
+        0xba1b6725U,
+        0xea0e9845U,
+        0xfec0e15dU,
+        0x2f7502c3U,
+        0x4cf01281U,
+        0x4697a38dU,
+        0xd3f9c66bU,
+        0x8f5fe703U,
+        0x929c9515U,
+        0x6d7aebbfU,
+        0x5259da95U,
+        0xbe832dd4U,
+        0x7421d358U,
+        0xe0692949U,
+        0xc9c8448eU,
+        0xc2896a75U,
+        0x8e7978f4U,
+        0x583e6b99U,
+        0xb971dd27U,
+        0xe14fb6beU,
+        0x88ad17f0U,
+        0x20ac66c9U,
+        0xce3ab47dU,
+        0xdf4a1863U,
+        0x1a3182e5U,
+        0x51336097U,
+        0x537f4562U,
+        0x6477e0b1U,
+        0x6bae84bbU,
+        0x81a01cfeU,
+        0x082b94f9U,
+        0x48685870U,
+        0x45fd198fU,
+        0xde6c8794U,
+        0x7bf8b752U,
+        0x73d323abU,
+        0x4b02e272U,
+        0x1f8f57e3U,
+        0x55ab2a66U,
+        0xeb2807b2U,
+        0xb5c2032fU,
+        0xc57b9a86U,
+        0x3708a5d3U,
+        0x2887f230U,
+        0xbfa5b223U,
+        0x036aba02U,
+        0x16825cedU,
+        0xcf1c2b8aU,
+        0x79b492a7U,
+        0x07f2f0f3U,
+        0x69e2a14eU,
+        0xdaf4cd65U,
+        0x05bed506U,
+        0x34621fd1U,
+        0xa6fe8ac4U,
+        0x2e539d34U,
+        0xf355a0a2U,
+        0x8ae13205U,
+        0xf6eb75a4U,
+        0x83ec390bU,
+        0x60efaa40U,
+        0x719f065eU,
+        0x6e1051bdU,
+        0x218af93eU,
+        0xdd063d96U,
+        0x3e05aeddU,
+        0xe6bd464dU,
+        0x548db591U,
+        0xc45d0571U,
+        0x06d46f04U,
+        0x5015ff60U,
+        0x98fb2419U,
+        0xbde997d6U,
+        0x4043cc89U,
+        0xd99e7767U,
+        0xe842bdb0U,
+        0x898b8807U,
+        0x195b38e7U,
+        0xc8eedb79U,
+        0x7c0a47a1U,
+        0x420fe97cU,
+        0x841ec9f8U,
+        0x00000000U,
+        0x80868309U,
+        0x2bed4832U,
+        0x1170ac1eU,
+        0x5a724e6cU,
+        0x0efffbfdU,
+        0x8538560fU,
+        0xaed51e3dU,
+        0x2d392736U,
+        0x0fd9640aU,
+        0x5ca62168U,
+        0x5b54d19bU,
+        0x362e3a24U,
+        0x0a67b10cU,
+        0x57e70f93U,
+        0xee96d2b4U,
+        0x9b919e1bU,
+        0xc0c54f80U,
+        0xdc20a261U,
+        0x774b695aU,
+        0x121a161cU,
+        0x93ba0ae2U,
+        0xa02ae5c0U,
+        0x22e0433cU,
+        0x1b171d12U,
+        0x090d0b0eU,
+        0x8bc7adf2U,
+        0xb6a8b92dU,
+        0x1ea9c814U,
+        0xf1198557U,
+        0x75074cafU,
+        0x99ddbbeeU,
+        0x7f60fda3U,
+        0x01269ff7U,
+        0x72f5bc5cU,
+        0x663bc544U,
+        0xfb7e345bU,
+        0x4329768bU,
+        0x23c6dccbU,
+        0xedfc68b6U,
+        0xe4f163b8U,
+        0x31dccad7U,
+        0x63851042U,
+        0x97224013U,
+        0xc6112084U,
+        0x4a247d85U,
+        0xbb3df8d2U,
+        0xf93211aeU,
+        0x29a16dc7U,
+        0x9e2f4b1dU,
+        0xb230f3dcU,
+        0x8652ec0dU,
+        0xc1e3d077U,
+        0xb3166c2bU,
+        0x70b999a9U,
+        0x9448fa11U,
+        0xe9642247U,
+        0xfc8cc4a8U,
+        0xf03f1aa0U,
+        0x7d2cd856U,
+        0x3390ef22U,
+        0x494ec787U,
+        0x38d1c1d9U,
+        0xcaa2fe8cU,
+        0xd40b3698U,
+        0xf581cfa6U,
+        0x7ade28a5U,
+        0xb78e26daU,
+        0xadbfa43fU,
+        0x3a9de42cU,
+        0x78920d50U,
+        0x5fcc9b6aU,
+        0x7e466254U,
+        0x8d13c2f6U,
+        0xd8b8e890U,
+        0x39f75e2eU,
+        0xc3aff582U,
+        0x5d80be9fU,
+        0xd0937c69U,
+        0xd52da96fU,
+        0x2512b3cfU,
+        0xac993bc8U,
+        0x187da710U,
+        0x9c636ee8U,
+        0x3bbb7bdbU,
+        0x267809cdU,
+        0x5918f46eU,
+        0x9ab701ecU,
+        0x4f9aa883U,
+        0x956e65e6U,
+        0xffe67eaaU,
+        0xbccf0821U,
+        0x15e8e6efU,
+        0xe79bd9baU,
+        0x6f36ce4aU,
+        0x9f09d4eaU,
+        0xb07cd629U,
+        0xa4b2af31U,
+        0x3f23312aU,
+        0xa59430c6U,
+        0xa266c035U,
+        0x4ebc3774U,
+        0x82caa6fcU,
+        0x90d0b0e0U,
+        0xa7d81533U,
+        0x04984af1U,
+        0xecdaf741U,
+        0xcd500e7fU,
+        0x91f62f17U,
+        0x4dd68d76U,
+        0xefb04d43U,
+        0xaa4d54ccU,
+        0x9604dfe4U,
+        0xd1b5e39eU,
+        0x6a881b4cU,
+        0x2c1fb8c1U,
+        0x65517f46U,
+        0x5eea049dU,
+        0x8c355d01U,
+        0x877473faU,
+        0x0b412efbU,
+        0x671d5ab3U,
+        0xdbd25292U,
+        0x105633e9U,
+        0xd647136dU,
+        0xd7618c9aU,
+        0xa10c7a37U,
+        0xf8148e59U,
+        0x133c89ebU,
+        0xa927eeceU,
+        0x61c935b7U,
+        0x1ce5ede1U,
+        0x47b13c7aU,
+        0xd2df599cU,
+        0xf2733f55U,
+        0x14ce7918U,
+        0xc737bf73U,
+        0xf7cdea53U,
+        0xfdaa5b5fU,
+        0x3d6f14dfU,
+        0x44db8678U,
+        0xaff381caU,
+        0x68c43eb9U,
+        0x24342c38U,
+        0xa3405fc2U,
+        0x1dc37216U,
+        0xe2250cbcU,
+        0x3c498b28U,
+        0x0d9541ffU,
+        0xa8017139U,
+        0x0cb3de08U,
+        0xb4e49cd8U,
+        0x56c19064U,
+        0xcb84617bU,
+        0x32b670d5U,
+        0x6c5c7448U,
+        0xb85742d0U,
+    };
+    constexpr u8 Decode4[256] = {
+        0x52U,
+        0x09U,
+        0x6aU,
+        0xd5U,
+        0x30U,
+        0x36U,
+        0xa5U,
+        0x38U,
+        0xbfU,
+        0x40U,
+        0xa3U,
+        0x9eU,
+        0x81U,
+        0xf3U,
+        0xd7U,
+        0xfbU,
+        0x7cU,
+        0xe3U,
+        0x39U,
+        0x82U,
+        0x9bU,
+        0x2fU,
+        0xffU,
+        0x87U,
+        0x34U,
+        0x8eU,
+        0x43U,
+        0x44U,
+        0xc4U,
+        0xdeU,
+        0xe9U,
+        0xcbU,
+        0x54U,
+        0x7bU,
+        0x94U,
+        0x32U,
+        0xa6U,
+        0xc2U,
+        0x23U,
+        0x3dU,
+        0xeeU,
+        0x4cU,
+        0x95U,
+        0x0bU,
+        0x42U,
+        0xfaU,
+        0xc3U,
+        0x4eU,
+        0x08U,
+        0x2eU,
+        0xa1U,
+        0x66U,
+        0x28U,
+        0xd9U,
+        0x24U,
+        0xb2U,
+        0x76U,
+        0x5bU,
+        0xa2U,
+        0x49U,
+        0x6dU,
+        0x8bU,
+        0xd1U,
+        0x25U,
+        0x72U,
+        0xf8U,
+        0xf6U,
+        0x64U,
+        0x86U,
+        0x68U,
+        0x98U,
+        0x16U,
+        0xd4U,
+        0xa4U,
+        0x5cU,
+        0xccU,
+        0x5dU,
+        0x65U,
+        0xb6U,
+        0x92U,
+        0x6cU,
+        0x70U,
+        0x48U,
+        0x50U,
+        0xfdU,
+        0xedU,
+        0xb9U,
+        0xdaU,
+        0x5eU,
+        0x15U,
+        0x46U,
+        0x57U,
+        0xa7U,
+        0x8dU,
+        0x9dU,
+        0x84U,
+        0x90U,
+        0xd8U,
+        0xabU,
+        0x00U,
+        0x8cU,
+        0xbcU,
+        0xd3U,
+        0x0aU,
+        0xf7U,
+        0xe4U,
+        0x58U,
+        0x05U,
+        0xb8U,
+        0xb3U,
+        0x45U,
+        0x06U,
+        0xd0U,
+        0x2cU,
+        0x1eU,
+        0x8fU,
+        0xcaU,
+        0x3fU,
+        0x0fU,
+        0x02U,
+        0xc1U,
+        0xafU,
+        0xbdU,
+        0x03U,
+        0x01U,
+        0x13U,
+        0x8aU,
+        0x6bU,
+        0x3aU,
+        0x91U,
+        0x11U,
+        0x41U,
+        0x4fU,
+        0x67U,
+        0xdcU,
+        0xeaU,
+        0x97U,
+        0xf2U,
+        0xcfU,
+        0xceU,
+        0xf0U,
+        0xb4U,
+        0xe6U,
+        0x73U,
+        0x96U,
+        0xacU,
+        0x74U,
+        0x22U,
+        0xe7U,
+        0xadU,
+        0x35U,
+        0x85U,
+        0xe2U,
+        0xf9U,
+        0x37U,
+        0xe8U,
+        0x1cU,
+        0x75U,
+        0xdfU,
+        0x6eU,
+        0x47U,
+        0xf1U,
+        0x1aU,
+        0x71U,
+        0x1dU,
+        0x29U,
+        0xc5U,
+        0x89U,
+        0x6fU,
+        0xb7U,
+        0x62U,
+        0x0eU,
+        0xaaU,
+        0x18U,
+        0xbeU,
+        0x1bU,
+        0xfcU,
+        0x56U,
+        0x3eU,
+        0x4bU,
+        0xc6U,
+        0xd2U,
+        0x79U,
+        0x20U,
+        0x9aU,
+        0xdbU,
+        0xc0U,
+        0xfeU,
+        0x78U,
+        0xcdU,
+        0x5aU,
+        0xf4U,
+        0x1fU,
+        0xddU,
+        0xa8U,
+        0x33U,
+        0x88U,
+        0x07U,
+        0xc7U,
+        0x31U,
+        0xb1U,
+        0x12U,
+        0x10U,
+        0x59U,
+        0x27U,
+        0x80U,
+        0xecU,
+        0x5fU,
+        0x60U,
+        0x51U,
+        0x7fU,
+        0xa9U,
+        0x19U,
+        0xb5U,
+        0x4aU,
+        0x0dU,
+        0x2dU,
+        0xe5U,
+        0x7aU,
+        0x9fU,
+        0x93U,
+        0xc9U,
+        0x9cU,
+        0xefU,
+        0xa0U,
+        0xe0U,
+        0x3bU,
+        0x4dU,
+        0xaeU,
+        0x2aU,
+        0xf5U,
+        0xb0U,
+        0xc8U,
+        0xebU,
+        0xbbU,
+        0x3cU,
+        0x83U,
+        0x53U,
+        0x99U,
+        0x61U,
+        0x17U,
+        0x2bU,
+        0x04U,
+        0x7eU,
+        0xbaU,
+        0x77U,
+        0xd6U,
+        0x26U,
+        0xe1U,
+        0x69U,
+        0x14U,
+        0x63U,
+        0x55U,
+        0x21U,
+        0x0cU,
+        0x7dU,
+    };
+
+    // RCON
+    constexpr u32 RCON[] = {
+        0x01000000,
+        0x02000000,
+        0x04000000,
+        0x08000000,
+        0x10000000,
+        0x20000000,
+        0x40000000,
+        0x80000000,
+        0x1B000000,
+        0x36000000,
+    };
+}
+}

Libraries/LibCrypto/Cipher/Cipher.h

@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/ByteBuffer.h>
+#include <AK/Optional.h>
+#include <AK/RefPtr.h>
+#include <AK/Types.h>
+
+namespace Crypto {
+
+enum class Intent {
+    Encryption,
+    Decryption,
+};
+
+enum class PaddingMode {
+    CMS, // RFC 1423
+    Null,
+    // FIXME: We do not implement these yet
+    Bit,
+    Random,
+    Space,
+    ZeroLength,
+};
+
+template <typename B, typename T>
+class Cipher;
+
+struct CipherBlock {
+public:
+    explicit CipherBlock(PaddingMode mode)
+        : m_padding_mode(mode)
+    {
+    }
+
+    static size_t block_size() { ASSERT_NOT_REACHED(); }
+
+    virtual ByteBuffer get() const = 0;
+    virtual const ByteBuffer& data() const = 0;
+
+    virtual void overwrite(const ByteBuffer&) = 0;
+    virtual void overwrite(const u8*, size_t) = 0;
+
+    virtual void apply_initialization_vector(const u8* ivec) = 0;
+
+    PaddingMode padding_mode() const { return m_padding_mode; }
+
+    template <typename T>
+    void put(size_t offset, T value)
+    {
+        ASSERT(offset + sizeof(T) <= data().size());
+        auto* ptr = data().data() + offset;
+        auto index { 0 };
+
+        ASSERT(sizeof(T) <= 4);
+
+        if constexpr (sizeof(T) > 3)
+            ptr[index++] = (u8)(value >> 24);
+
+        if constexpr (sizeof(T) > 2)
+            ptr[index++] = (u8)(value >> 16);
+
+        if constexpr (sizeof(T) > 1)
+            ptr[index++] = (u8)(value >> 8);
+
+        ptr[index] = (u8)value;
+    }
+
+private:
+    virtual ByteBuffer& data() = 0;
+    PaddingMode m_padding_mode;
+};
+
+struct CipherKey {
+    virtual ByteBuffer data() const = 0;
+    static bool is_valid_key_size(size_t) { return false; };
+
+    virtual ~CipherKey() { }
+
+protected:
+    virtual void expand_encrypt_key(const ByteBuffer& user_key, size_t bits) = 0;
+    virtual void expand_decrypt_key(const ByteBuffer& user_key, size_t bits) = 0;
+    size_t bits { 0 };
+};
+
+template <typename KeyT = CipherKey, typename BlockT = CipherBlock>
+class Cipher {
+public:
+    using KeyType = KeyT;
+    using BlockType = BlockT;
+
+    explicit Cipher<KeyT, BlockT>(PaddingMode mode)
+        : m_padding_mode(mode)
+    {
+    }
+
+    virtual const KeyType& key() const = 0;
+    virtual KeyType& key() = 0;
+
+    static size_t block_size() { return BlockType::block_size(); }
+
+    PaddingMode padding_mode() const { return m_padding_mode; }
+
+    virtual void encrypt_block(const BlockType& in, BlockType& out) = 0;
+    virtual void decrypt_block(const BlockType& in, BlockType& out) = 0;
+
+private:
+    PaddingMode m_padding_mode { PaddingMode::CMS };
+};
+}
+}

Libraries/LibCrypto/Cipher/Mode/CBC.h

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibCrypto/Cipher/Mode/Mode.h>
+
+namespace Crypto {
+
+template <typename T>
+class CBC : public Mode<T> {
+public:
+    template <typename... Args>
+    explicit constexpr CBC<T>(Args... args)
+        : Mode<T>(args...)
+    {
+    }
+
+    virtual Optional<ByteBuffer> encrypt(const ByteBuffer& in, ByteBuffer& out, Optional<ByteBuffer> ivec = {}) override
+    {
+        auto length = in.size();
+        if (length == 0)
+            return {};
+
+        auto& cipher = this->cipher();
+
+        // FIXME: We should have two of these encrypt/decrypt functions that
+        //        we SFINAE out based on whether the Cipher mode needs an ivec
+        ASSERT(ivec.has_value());
+        const auto* iv = ivec.value().data();
+
+        typename T::BlockType block { cipher.padding_mode() };
+        size_t offset { 0 };
+        auto block_size = cipher.block_size();
+
+        while (length >= block_size) {
+            block.overwrite(in.slice_view(offset, block_size));
+            block.apply_initialization_vector(iv);
+            cipher.encrypt_block(block, block);
+            out.overwrite(offset, block.get().data(), block_size);
+            iv = out.offset_pointer(offset);
+            length -= block_size;
+            offset += block_size;
+        }
+
+        if (length > 0) {
+            block.overwrite(in.slice_view(offset, length));
+            block.apply_initialization_vector(iv);
+            cipher.encrypt_block(block, block);
+            out.overwrite(offset, block.get().data(), block_size);
+            iv = out.offset_pointer(offset);
+        }
+
+        return ByteBuffer::copy(iv, block_size);
+    }
+    virtual void decrypt(const ByteBuffer& in, ByteBuffer& out, Optional<ByteBuffer> ivec = {}) override
+    {
+        auto length = in.size();
+        if (length == 0)
+            return;
+
+        auto& cipher = this->cipher();
+
+        ASSERT(ivec.has_value());
+        const auto* iv = ivec.value().data();
+
+        auto block_size = cipher.block_size();
+
+        // if the data is not aligned, it's not correct encrypted data
+        // FIXME (ponder): Should we simply decrypt as much as we can?
+        ASSERT(length % block_size == 0);
+
+        typename T::BlockType block { cipher.padding_mode() };
+        size_t offset { 0 };
+
+        while (length > 0) {
+            auto* slice = in.offset_pointer(offset);
+            block.overwrite(slice, block_size);
+            cipher.decrypt_block(block, block);
+            block.apply_initialization_vector(iv);
+            auto decrypted = block.get();
+            out.overwrite(offset, decrypted.data(), decrypted.size());
+            iv = slice;
+            length -= block_size;
+            offset += block_size;
+        }
+        this->prune_padding(out);
+    }
+};
+
+}

Libraries/LibCrypto/Cipher/Mode/Mode.h

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/ByteBuffer.h>
+#include <LibCrypto/Cipher/Cipher.h>
+
+namespace Crypto {
+
+template <typename T>
+class Mode {
+public:
+    // FIXME: Somehow communicate that encrypt returns the last initialization vector (if the mode supports it)
+    virtual Optional<ByteBuffer> encrypt(const ByteBuffer& in, ByteBuffer& out, Optional<ByteBuffer> ivec = {}) = 0;
+    virtual void decrypt(const ByteBuffer& in, ByteBuffer& out, Optional<ByteBuffer> ivec = {}) = 0;
+
+    const T& cipher() const { return m_cipher; }
+
+    ByteBuffer create_aligned_buffer(size_t input_size) const
+    {
+        size_t remainder = (input_size + T::block_size()) % T::block_size();
+        if (remainder == 0)
+            return ByteBuffer::create_uninitialized(input_size);
+        else
+            return ByteBuffer::create_uninitialized(input_size + T::block_size() - remainder);
+    }
+
+protected:
+    T& cipher() { return m_cipher; }
+
+    virtual void prune_padding(ByteBuffer& data)
+    {
+        auto size = data.size();
+        switch (m_cipher.padding_mode()) {
+        case PaddingMode::CMS: {
+            auto maybe_padding_length = data[size - 1];
+            if (maybe_padding_length >= T::block_size()) {
+                // cannot be padding (the entire block cannot be padding)
+                return;
+            }
+            for (auto i = maybe_padding_length; i > 0; --i) {
+                if (data[size - i] != maybe_padding_length) {
+                    // not padding, part of data
+                    return;
+                }
+            }
+            data.trim(size - maybe_padding_length);
+            break;
+        }
+        case PaddingMode::Null: {
+            while (data[size - 1] == 0)
+                --size;
+            data.trim(size);
+            break;
+        }
+        default:
+            // FIXME: support other padding modes
+            ASSERT_NOT_REACHED();
+            break;
+        }
+    }
+
+    // FIXME: Somehow add a reference version of this
+    template <typename... Args>
+    Mode(Args... args)
+        : m_cipher(args...)
+    {
+    }
+
+private:
+    T m_cipher;
+};
+}

Libraries/LibCrypto/Makefile

@@ -0,0 +1,17 @@
+LIBCRYPTO_OBJS = \
+	   	Cipher/AES.o
+
+OBJS = $(LIBCRYPTO_OBJS)
+
+LIBRARY = libcrypto.a
+
+install:
+	for dir in . Cipher Cipher/Mode; do \
+	    mkdir -p $(SERENITY_BASE_DIR)/Root/usr/include/LibCrypto/$$dir; \
+	    cp $$dir/*.h $(SERENITY_BASE_DIR)/Root/usr/include/LibCrypto/$$dir/; \
+	done
+	cp $(LIBRARY) $(SERENITY_BASE_DIR)/Root/usr/lib/
+
+include ../../Makefile.common
+
+include ../../Makefile.subdir

Userland/test-crypto.cpp

@@ -0,0 +1,234 @@
+#include <LibCore/ArgsParser.h>
+#include <LibCore/File.h>
+#include <LibCrypto/Cipher/AES.h>
+#include <LibLine/Editor.h>
+#include <stdio.h>
+
+static const char* secret_key = "WellHelloFreinds";
+static const char* cipher = "AES_CBC";
+static const char* filename = nullptr;
+static int key_bits = 128;
+static bool encrypting = false;
+static bool binary = false;
+static bool interactive = false;
+static bool run_tests = false;
+
+// listAllTests
+int aes_cbc_tests();
+
+// stop listing tests
+
+void print_buffer(const ByteBuffer& buffer, size_t split)
+{
+    for (size_t i = 0; i < buffer.size(); ++i) {
+        if (i % split == 0 && i)
+            puts("");
+        printf("%02x", buffer[i]);
+    }
+    puts("");
+}
+
+void aes_cbc(const char* message, size_t len)
+{
+    auto buffer = ByteBuffer::wrap(message, len);
+    // FIXME: Take iv as an optional parameter
+    auto iv = ByteBuffer::create_zeroed(Crypto::AESCipher::block_size());
+
+    if (encrypting) {
+        Crypto::AESCipher::CBCMode cipher(secret_key, key_bits, Crypto::Intent::Encryption);
+
+        auto enc = cipher.create_aligned_buffer(buffer.size());
+        cipher.encrypt(buffer, enc, iv);
+
+        if (binary)
+            printf("%.*s", (int)enc.size(), enc.data());
+        else
+            print_buffer(enc, Crypto::AESCipher::block_size());
+    } else {
+        Crypto::AESCipher::CBCMode cipher(secret_key, key_bits, Crypto::Intent::Decryption);
+        auto dec = cipher.create_aligned_buffer(buffer.size());
+        cipher.decrypt(buffer, dec, iv);
+        printf("%.*s\n", (int)dec.size(), dec.data());
+    }
+}
+
+auto main(int argc, char** argv) -> int
+{
+    Core::ArgsParser parser;
+    parser.add_option(secret_key, "Set the secret key (must be key-bits bits)", "secret-key", 'k', "secret key");
+    parser.add_option(key_bits, "Size of the key", "key-bits", 'b', "key-bits");
+    parser.add_option(filename, "Read from file", "file", 'f', "from file");
+    parser.add_option(encrypting, "Encrypt the message", "encrypt", 'e');
+    parser.add_option(binary, "Force binary output", "force-binary", 0);
+    parser.add_option(interactive, "Force binary output", "interactive", 'i');
+    parser.add_option(run_tests, "Run tests for the specified suite", "tests", 't');
+    parser.add_option(cipher, "Set the Cipher used", "cipher", 'c', "cipher name");
+    parser.parse(argc, argv);
+
+    if (StringView(cipher) == "AES_CBC") {
+        if (run_tests)
+            return aes_cbc_tests();
+
+        if (!Crypto::AESCipher::KeyType::is_valid_key_size(key_bits)) {
+            printf("Invalid key size for AES: %d\n", key_bits);
+            return 1;
+        }
+        if (strlen(secret_key) != (size_t)key_bits / 8) {
+            printf("Key must be exactly %d bytes long\n", key_bits / 8);
+            return 1;
+        }
+        if (interactive) {
+            Line::Editor editor;
+            editor.initialize();
+            for (;;) {
+                auto line = editor.get_line("> ");
+                aes_cbc(line.characters(), line.length());
+            }
+        } else {
+            if (filename == nullptr) {
+                puts("must specify a file name");
+                return 1;
+            }
+            if (!Core::File::exists(filename)) {
+                puts("File does not exist");
+                return 1;
+            }
+            auto file = Core::File::open(filename, Core::IODevice::OpenMode::ReadOnly);
+            auto buffer = file->read_all();
+            aes_cbc((const char*)buffer.data(), buffer.size());
+        }
+    } else {
+        printf("Unknown cipher suite '%s'", cipher);
+        return 1;
+    }
+
+    return 0;
+}
+
+#define I_TEST(thing)                     \
+    {                                     \
+        printf("Testing " #thing "... "); \
+    }
+#define PASS printf("PASS\n")
+#define FAIL(reason) printf("FAIL: " #reason "\n")
+
+ByteBuffer operator""_b(const char* string, size_t length)
+{
+    dbg() << "Create byte buffer of size " << length;
+    return ByteBuffer::copy(string, length);
+}
+
+// tests go after here
+// please be reasonable with orders kthx
+void aes_cbc_test_encrypt();
+void aes_cbc_test_decrypt();
+
+int aes_cbc_tests()
+{
+    aes_cbc_test_encrypt();
+    aes_cbc_test_decrypt();
+    return 0;
+}
+
+void aes_cbc_test_encrypt()
+{
+    auto test_it = [](auto& cipher, auto& result) {
+        auto in = "This is a test! This is another test!"_b;
+        auto out = cipher.create_aligned_buffer(in.size());
+        auto iv = ByteBuffer::create_zeroed(Crypto::AESCipher::block_size());
+        cipher.encrypt(in, out, iv);
+        if (out.size() != sizeof(result))
+            FAIL(size mismatch);
+        else if (memcmp(out.data(), result, out.size()) != 0) {
+            FAIL(invalid data);
+            print_buffer(out, Crypto::AESCipher::block_size());
+        } else
+            PASS;
+    };
+    {
+        I_TEST((AES CBC with 128 bit key | Encrypt))
+        u8 result[] {
+            0xb8, 0x06, 0x7c, 0xf2, 0xa9, 0x56, 0x63, 0x58, 0x2d, 0x5c, 0xa1, 0x4b, 0xc5, 0xe3, 0x08,
+            0xcf, 0xb5, 0x93, 0xfb, 0x67, 0xb6, 0xf7, 0xaf, 0x45, 0x34, 0x64, 0x70, 0x9e, 0xc9, 0x1a,
+            0x8b, 0xd3, 0x70, 0x45, 0xf0, 0x79, 0x65, 0xca, 0xb9, 0x03, 0x88, 0x72, 0x1c, 0xdd, 0xab,
+            0x45, 0x6b, 0x1c
+        };
+        Crypto::AESCipher::CBCMode cipher("WellHelloFriends", 128, Crypto::Intent::Encryption);
+        test_it(cipher, result);
+    }
+    {
+        I_TEST((AES CBC with 192 bit key | Encrypt))
+        u8 result[] {
+            0xae, 0xd2, 0x70, 0xc4, 0x9c, 0xaa, 0x83, 0x33, 0xd3, 0xd3, 0xac, 0x11, 0x65, 0x35, 0xf7,
+            0x19, 0x48, 0x7c, 0x7a, 0x8a, 0x95, 0x64, 0xe7, 0xc6, 0x0a, 0xdf, 0x10, 0x06, 0xdc, 0x90,
+            0x68, 0x51, 0x09, 0xd7, 0x3b, 0x48, 0x1b, 0x8a, 0xd3, 0x50, 0x09, 0xba, 0xfc, 0xde, 0x11,
+            0xe0, 0x3f, 0xcb
+        };
+        Crypto::AESCipher::CBCMode cipher("Well Hello Friends! whf!", 192, Crypto::Intent::Encryption);
+        test_it(cipher, result);
+    }
+    {
+        I_TEST((AES CBC with 256 bit key | Encrypt))
+        u8 result[] {
+            0x0a, 0x44, 0x4d, 0x62, 0x9e, 0x8b, 0xd8, 0x11, 0x80, 0x48, 0x2a, 0x32, 0x53, 0x61, 0xe7,
+            0x59, 0x62, 0x55, 0x9e, 0xf4, 0xe6, 0xad, 0xea, 0xc5, 0x0b, 0xf6, 0xbc, 0x6a, 0xcb, 0x9c,
+            0x47, 0x9f, 0xc2, 0x21, 0xe6, 0x19, 0x62, 0xc3, 0x75, 0xca, 0xab, 0x2d, 0x18, 0xa1, 0x54,
+            0xd1, 0x41, 0xe6
+        };
+        Crypto::AESCipher::CBCMode cipher("WellHelloFriendsWellHelloFriends", 256, Crypto::Intent::Encryption);
+        test_it(cipher, result);
+    }
+    // TODO: Test non-CMS padding options
+}
+void aes_cbc_test_decrypt()
+{
+    auto test_it = [](auto& cipher, auto& result, auto result_len) {
+        auto true_value = "This is a test! This is another test!";
+        auto in = ByteBuffer::copy(result, result_len);
+        auto out = cipher.create_aligned_buffer(in.size());
+        auto iv = ByteBuffer::create_zeroed(Crypto::AESCipher::block_size());
+        cipher.decrypt(in, out, iv);
+        if (out.size() != strlen(true_value)) {
+            FAIL(size mismatch);
+            printf("Expected %zu bytes but got %zu\n", strlen(true_value), out.size());
+        } else if (memcmp(out.data(), true_value, strlen(true_value)) != 0) {
+            FAIL(invalid data);
+            print_buffer(out, Crypto::AESCipher::block_size());
+        } else
+            PASS;
+    };
+    {
+        I_TEST((AES CBC with 128 bit key | Decrypt))
+        u8 result[] {
+            0xb8, 0x06, 0x7c, 0xf2, 0xa9, 0x56, 0x63, 0x58, 0x2d, 0x5c, 0xa1, 0x4b, 0xc5, 0xe3, 0x08,
+            0xcf, 0xb5, 0x93, 0xfb, 0x67, 0xb6, 0xf7, 0xaf, 0x45, 0x34, 0x64, 0x70, 0x9e, 0xc9, 0x1a,
+            0x8b, 0xd3, 0x70, 0x45, 0xf0, 0x79, 0x65, 0xca, 0xb9, 0x03, 0x88, 0x72, 0x1c, 0xdd, 0xab,
+            0x45, 0x6b, 0x1c
+        };
+        Crypto::AESCipher::CBCMode cipher("WellHelloFriends", 128, Crypto::Intent::Decryption);
+        test_it(cipher, result, 48);
+    }
+    {
+        I_TEST((AES CBC with 192 bit key | Decrypt))
+        u8 result[] {
+            0xae, 0xd2, 0x70, 0xc4, 0x9c, 0xaa, 0x83, 0x33, 0xd3, 0xd3, 0xac, 0x11, 0x65, 0x35, 0xf7,
+            0x19, 0x48, 0x7c, 0x7a, 0x8a, 0x95, 0x64, 0xe7, 0xc6, 0x0a, 0xdf, 0x10, 0x06, 0xdc, 0x90,
+            0x68, 0x51, 0x09, 0xd7, 0x3b, 0x48, 0x1b, 0x8a, 0xd3, 0x50, 0x09, 0xba, 0xfc, 0xde, 0x11,
+            0xe0, 0x3f, 0xcb
+        };
+        Crypto::AESCipher::CBCMode cipher("Well Hello Friends! whf!", 192, Crypto::Intent::Decryption);
+        test_it(cipher, result, 48);
+    }
+    {
+        I_TEST((AES CBC with 256 bit key | Decrypt))
+        u8 result[] {
+            0x0a, 0x44, 0x4d, 0x62, 0x9e, 0x8b, 0xd8, 0x11, 0x80, 0x48, 0x2a, 0x32, 0x53, 0x61, 0xe7,
+            0x59, 0x62, 0x55, 0x9e, 0xf4, 0xe6, 0xad, 0xea, 0xc5, 0x0b, 0xf6, 0xbc, 0x6a, 0xcb, 0x9c,
+            0x47, 0x9f, 0xc2, 0x21, 0xe6, 0x19, 0x62, 0xc3, 0x75, 0xca, 0xab, 0x2d, 0x18, 0xa1, 0x54,
+            0xd1, 0x41, 0xe6
+        };
+        Crypto::AESCipher::CBCMode cipher("WellHelloFriendsWellHelloFriends", 256, Crypto::Intent::Decryption);
+        test_it(cipher, result, 48);
+    }
+    // TODO: Test non-CMS padding options
+}