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LibTLS: Add support for SECP384r1

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Michiel Visser 2023-11-10 16:23:01 +01:00 committed by Ali Mohammad Pur
parent 6322d68b1b
commit 927dc1f02a
Notes: sideshowbarker 2024-07-17 06:51:48 +09:00 
Author: https://github.com/msvisser
Commit: https://github.com/SerenityOS/serenity/commit/927dc1f02a
Pull-request: https://github.com/SerenityOS/serenity/pull/21875
Issue: https://github.com/SerenityOS/serenity/issues/21211
3 changed files with 29 additions and 0 deletions
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13
Userland/Libraries/LibTLS/HandshakeServer.cpp
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@ -14,6 +14,7 @@
#include <LibCrypto/Curves/Ed25519.h>
#include <LibCrypto/Curves/EllipticCurve.h>
#include <LibCrypto/Curves/SECP256r1.h>
#include <LibCrypto/Curves/SECP384r1.h>
#include <LibCrypto/Curves/X25519.h>
#include <LibCrypto/Curves/X448.h>
#include <LibCrypto/PK/Code/EMSA_PKCS1_V1_5.h>
@ -317,6 +318,9 @@ ssize_t TLSv12::handle_ecdhe_server_key_exchange(ReadonlyBytes buffer, u8& serve
case SupportedGroup::SECP256R1:
m_context.server_key_exchange_curve = make<Crypto::Curves::SECP256r1>();
break;
case SupportedGroup::SECP384R1:
m_context.server_key_exchange_curve = make<Crypto::Curves::SECP384r1>();
break;
default:
return (i8)Error::NotUnderstood;
}
@ -493,6 +497,15 @@ ssize_t TLSv12::verify_ecdsa_server_key_exchange(ReadonlyBytes server_key_info_b
res = curve.verify(digest.bytes(), server_point, signature);
break;
}
case SupportedGroup::SECP384R1: {
Crypto::Hash::Manager manager(hash_kind);
manager.update(message);
auto digest = manager.digest();
Crypto::Curves::SECP384r1 curve;
res = curve.verify(digest.bytes(), server_point, signature);
break;
}
default: {
dbgln("verify_ecdsa_server_key_exchange failed: Server certificate public key algorithm is not supported: {}", to_underlying(public_key.algorithm.ec_parameters));
break;

14
Userland/Libraries/LibTLS/TLSv12.cpp
View file

@ -16,6 +16,7 @@
#include <LibCrypto/ASN1/PEM.h>
#include <LibCrypto/Curves/Ed25519.h>
#include <LibCrypto/Curves/SECP256r1.h>
#include <LibCrypto/Curves/SECP384r1.h>
#include <LibCrypto/PK/Code/EMSA_PKCS1_V1_5.h>
#include <LibCrypto/PK/Code/EMSA_PSS.h>
#include <LibFileSystem/FileSystem.h>
@ -413,6 +414,19 @@ bool Context::verify_certificate_pair(Certificate const& subject, Certificate co
}
return result.value();
}
case SupportedGroup::SECP384R1: {
Crypto::Hash::Manager hasher(kind);
hasher.update(subject.tbs_asn1.bytes());
auto hash = hasher.digest();
Crypto::Curves::SECP384r1 curve;
auto result = curve.verify(hash.bytes(), issuer.public_key.raw_key, subject.signature_value);
if (result.is_error()) {
dbgln("verify_certificate_pair: Failed to check SECP384r1 signature {}", result.release_error());
return false;
}
return result.value();
}
case SupportedGroup::X25519: {
Crypto::Curves::Ed25519 curve;
auto result = curve.verify(issuer.public_key.raw_key, subject.signature_value, subject.tbs_asn1.bytes());

2
Userland/Libraries/LibTLS/TLSv12.h
View file

@ -164,10 +164,12 @@ struct Options {
{ HashAlgorithm::SHA256, SignatureAlgorithm::RSA },
{ HashAlgorithm::SHA1, SignatureAlgorithm::RSA },
{ HashAlgorithm::SHA256, SignatureAlgorithm::ECDSA },
{ HashAlgorithm::SHA384, SignatureAlgorithm::ECDSA },
{ HashAlgorithm::INTRINSIC, SignatureAlgorithm::ED25519 });
OPTION_WITH_DEFAULTS(Vector<SupportedGroup>, elliptic_curves,
SupportedGroup::X25519,
SupportedGroup::SECP256R1,
SupportedGroup::SECP384R1,
SupportedGroup::X448)
OPTION_WITH_DEFAULTS(Vector<ECPointFormat>, supported_ec_point_formats, ECPointFormat::UNCOMPRESSED)