b4df5d078a
ARM backends: fix round key byte-swap on little-endian (vrev32q_u8), rewrite decrypt to pre-process middle keys with InvMixColumns, fix GHASH PMULL reflect and reduction ordering. API: add nonce/IV-generating convenience overloads for CTR, CBC, and GCM (library generates and prepends nonce, appends tag). Add C API for IV/nonce generation. Rename error codes (TINYAES_OK, Result::Ok, Result::AuthenticationFailed, etc.). Build: add MinGW GCC AVX-512 debug alignment fix, harden bench/fuzz CMake targets (warnings-as-errors, linker hardening), align with tinysha CMake conventions. Add README. Tests: expand coverage for nonce-generating API overloads, add NIST GCM test vectors, improve fuzz target differential testing.
130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
// Copyright (c) 2025-2026, Brandon Lehmann
|
|
// BSD 3-Clause License (see LICENSE)
|
|
|
|
#include "test_harness.h"
|
|
#include "tinyaes/cbc.h"
|
|
|
|
#include "vectors/aes_cbc_vectors.inl"
|
|
|
|
#define VEC(arr) std::vector<uint8_t>(arr, arr + sizeof(arr))
|
|
|
|
TEST(cbc_aes128_encrypt)
|
|
{
|
|
std::vector<uint8_t> ct;
|
|
auto result = tinyaes::cbc_encrypt(VEC(cbc_128_key), VEC(cbc_128_iv), VEC(cbc_128_plain), ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(ct, VEC(cbc_128_cipher));
|
|
}
|
|
|
|
TEST(cbc_aes128_decrypt)
|
|
{
|
|
std::vector<uint8_t> pt;
|
|
auto result = tinyaes::cbc_decrypt(VEC(cbc_128_key), VEC(cbc_128_iv), VEC(cbc_128_cipher), pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, VEC(cbc_128_plain));
|
|
}
|
|
|
|
TEST(cbc_aes192_encrypt)
|
|
{
|
|
std::vector<uint8_t> ct;
|
|
auto result = tinyaes::cbc_encrypt(VEC(cbc_192_key), VEC(cbc_192_iv), VEC(cbc_192_plain), ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(ct, VEC(cbc_192_cipher));
|
|
}
|
|
|
|
TEST(cbc_aes192_decrypt)
|
|
{
|
|
std::vector<uint8_t> pt;
|
|
auto result = tinyaes::cbc_decrypt(VEC(cbc_192_key), VEC(cbc_192_iv), VEC(cbc_192_cipher), pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, VEC(cbc_192_plain));
|
|
}
|
|
|
|
TEST(cbc_aes256_encrypt)
|
|
{
|
|
std::vector<uint8_t> ct;
|
|
auto result = tinyaes::cbc_encrypt(VEC(cbc_256_key), VEC(cbc_256_iv), VEC(cbc_256_plain), ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(ct, VEC(cbc_256_cipher));
|
|
}
|
|
|
|
TEST(cbc_aes256_decrypt)
|
|
{
|
|
std::vector<uint8_t> pt;
|
|
auto result = tinyaes::cbc_decrypt(VEC(cbc_256_key), VEC(cbc_256_iv), VEC(cbc_256_cipher), pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, VEC(cbc_256_plain));
|
|
}
|
|
|
|
TEST(cbc_roundtrip_pkcs7)
|
|
{
|
|
std::vector<uint8_t> key(16, 0x42);
|
|
std::vector<uint8_t> iv(16, 0x00);
|
|
std::vector<uint8_t> plaintext = {0x48, 0x65, 0x6c, 0x6c, 0x6f}; // "Hello"
|
|
std::vector<uint8_t> ct, pt;
|
|
|
|
auto result = tinyaes::cbc_encrypt_pkcs7(key, iv, plaintext, ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_TRUE(ct.size() == 16); // 5 bytes + 11 padding = 16
|
|
|
|
result = tinyaes::cbc_decrypt_pkcs7(key, iv, ct, pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, plaintext);
|
|
}
|
|
|
|
TEST(cbc_invalid_iv_size)
|
|
{
|
|
std::vector<uint8_t> key(16, 0), iv(15, 0), pt(16, 0), ct;
|
|
ASSERT_TRUE(tinyaes::cbc_encrypt(key, iv, pt, ct) == tinyaes::Result::InvalidIVSize);
|
|
}
|
|
|
|
TEST(cbc_non_block_aligned_no_padding)
|
|
{
|
|
std::vector<uint8_t> key(16, 0), iv(16, 0), pt(17, 0), ct;
|
|
ASSERT_TRUE(tinyaes::cbc_encrypt(key, iv, pt, ct) == tinyaes::Result::InvalidInputSize);
|
|
}
|
|
|
|
TEST(cbc_multi_block_roundtrip_no_padding)
|
|
{
|
|
std::vector<uint8_t> key(16, 0x42);
|
|
std::vector<uint8_t> iv(16, 0x00);
|
|
std::vector<uint8_t> plaintext(64, 0x55); // 4 blocks
|
|
std::vector<uint8_t> ct, pt;
|
|
|
|
auto result = tinyaes::cbc_encrypt(key, iv, plaintext, ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_TRUE(ct.size() == 64);
|
|
|
|
result = tinyaes::cbc_decrypt(key, iv, ct, pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, plaintext);
|
|
}
|
|
|
|
TEST(cbc_auto_iv_roundtrip)
|
|
{
|
|
std::vector<uint8_t> key(16, 0x42);
|
|
std::vector<uint8_t> plaintext = {0x48, 0x65, 0x6c, 0x6c, 0x6f};
|
|
std::vector<uint8_t> iv_ct, pt;
|
|
|
|
auto result = tinyaes::cbc_encrypt_pkcs7(key, plaintext, iv_ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_TRUE(iv_ct.size() >= 32); // 16 IV + at least 16 ciphertext
|
|
|
|
result = tinyaes::cbc_decrypt_pkcs7(key, iv_ct, pt);
|
|
ASSERT_TRUE(result == tinyaes::Result::Ok);
|
|
ASSERT_EQ(pt, plaintext);
|
|
}
|
|
|
|
TEST(cbc_invalid_key_size)
|
|
{
|
|
std::vector<uint8_t> key(15, 0x42); // invalid: not 16/24/32
|
|
std::vector<uint8_t> iv(16, 0x00);
|
|
std::vector<uint8_t> plaintext(16, 0x55);
|
|
std::vector<uint8_t> ct;
|
|
|
|
auto result = tinyaes::cbc_encrypt(key, iv, plaintext, ct);
|
|
ASSERT_TRUE(result == tinyaes::Result::InvalidKeySize);
|
|
}
|
|
|
|
#undef VEC
|