Lagom/Fuzzers: Add fuzzers for all current hashing functions

Namely MD5, SHA1, SHA256, SHA384 and SHA512.

Meta/Lagom/Fuzzers/CMakeLists.txt

@@ -26,6 +26,7 @@ add_simple_fuzzer(FuzzGzipCompression)
 add_simple_fuzzer(FuzzGzipDecompression)
 add_simple_fuzzer(FuzzICOLoader)
 add_simple_fuzzer(FuzzJPGLoader)
+add_simple_fuzzer(FuzzMD5)
 add_simple_fuzzer(FuzzPNGLoader)
 add_simple_fuzzer(FuzzPBMLoader)
 add_simple_fuzzer(FuzzPGMLoader)
@@ -39,6 +40,10 @@ add_simple_fuzzer(FuzzLatin2Decoder)
 add_simple_fuzzer(FuzzMarkdown)
 add_simple_fuzzer(FuzzRegexECMA262)
 add_simple_fuzzer(FuzzRegexPosixExtended)
+add_simple_fuzzer(FuzzSHA1)
+add_simple_fuzzer(FuzzSHA256)
+add_simple_fuzzer(FuzzSHA384)
+add_simple_fuzzer(FuzzSHA512)
 add_simple_fuzzer(FuzzShell)
 add_simple_fuzzer(FuzzSQLParser)
 add_simple_fuzzer(FuzzTTF)

Meta/Lagom/Fuzzers/FuzzMD5.cpp

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Hash/MD5.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto buffer = ByteBuffer::copy(data, size);
+    Crypto::Hash::MD5::hash(buffer);
+    return 0;
+}

Meta/Lagom/Fuzzers/FuzzSHA1.cpp

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Hash/SHA1.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto buffer = ByteBuffer::copy(data, size);
+    Crypto::Hash::SHA1::hash(buffer);
+    return 0;
+}

Meta/Lagom/Fuzzers/FuzzSHA256.cpp

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Hash/SHA2.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto buffer = ByteBuffer::copy(data, size);
+    Crypto::Hash::SHA256::hash(buffer);
+    return 0;
+}

Meta/Lagom/Fuzzers/FuzzSHA384.cpp

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Hash/SHA2.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto buffer = ByteBuffer::copy(data, size);
+    Crypto::Hash::SHA384::hash(buffer);
+    return 0;
+}

Meta/Lagom/Fuzzers/FuzzSHA512.cpp

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Hash/SHA2.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto buffer = ByteBuffer::copy(data, size);
+    Crypto::Hash::SHA512::hash(buffer);
+    return 0;
+}