diff options
Diffstat (limited to 'src/nc-crypto.c')
| -rw-r--r-- | src/nc-crypto.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/nc-crypto.c b/src/nc-crypto.c index 97b59cb..99c072d 100644 --- a/src/nc-crypto.c +++ b/src/nc-crypto.c @@ -41,6 +41,7 @@ * _IMPL_CRYPTO_SHA256_DIGEST standard sha256 digest function * _IMPL_CRYPTO_SHA256_HKDF_EXPAND hkdf expand function * _IMPL_CRYPTO_SHA256_HKDF_EXTRACT hkdf extract function +* _IMPL_AES256_CBC_CRYPT performs an AES 256 CBC encryption/decryption * * Macros are used to allow the preprocessor to select the correct implementation * or raise errors if no implementation is defined. @@ -49,6 +50,26 @@ * calling function, and should return CSTATUS_OK on success, CSTATUS_FAIL on failure. */ +#define UNREFPARAM(x) (void)(x) + +_IMPLSTB cstatus_t _dummyAesFunc( + const uint8_t key[32], + const uint8_t iv[16], + const uint8_t* input, + uint8_t* output, + uint32_t dataSize +) +{ + UNREFPARAM(key); + UNREFPARAM(iv); + UNREFPARAM(input); + UNREFPARAM(output); + UNREFPARAM(dataSize); + + return CSTATUS_FAIL; +} + +#define _IMPL_AES256_CBC_CRYPT _dummyAesFunc /* * Prioritize embedded builds with mbedtls @@ -282,3 +303,23 @@ cstatus_t ncCryptoChacha20( return _IMPL_CHACHA20_CRYPT(key, nonce, input, output, dataSize); } + +cstatus_t ncAes256CBCEncrypt( + const uint8_t key[32], + const uint8_t iv[16], + const uint8_t* input, + uint8_t* output, + uint32_t dataSize +) +{ + DEBUG_ASSERT2(key != NULL, "Expected key to be non-null") + DEBUG_ASSERT2(iv != NULL, "Expected iv to be non-null") + DEBUG_ASSERT2(input != NULL, "Expected input to be non-null") + DEBUG_ASSERT2(output != NULL, "Expected output to be non-null") + +#ifndef _IMPL_AES256_CBC_CRYPT + #error "No AES256 CBC encrypt implementation defined" +#endif /* !_IMPL_AES256_CBC_CRYPT */ + + return _IMPL_AES256_CBC_CRYPT(key, iv, input, output, dataSize); +}
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