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BLOCK_CIPHER_NO_DECRYPT: call encrypt direction unconditionally

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Signed-off-by: Yanray Wang <yanray.wang@arm.com>
This commit is contained in:
Yanray Wang
2023-11-10 13:41:12 +08:00
parent 799bd84b0d
commit 111159b89c
5 changed files with 18 additions and 28 deletions
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25
library/aesni.c
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@ -93,24 +93,25 @@ int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
++rk;
--nr;
if (mode == MBEDTLS_AES_ENCRYPT) {
while (nr != 0) {
state = _mm_aesenc_si128(state, *rk);
++rk;
--nr;
}
state = _mm_aesenclast_si128(state, *rk);
} else {
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_DECRYPT) {
while (nr != 0) {
state = _mm_aesdec_si128(state, *rk);
++rk;
--nr;
}
state = _mm_aesdeclast_si128(state, *rk);
} else
#else
return MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE;
(void) mode;
#endif
{
while (nr != 0) {
state = _mm_aesenc_si128(state, *rk);
++rk;
--nr;
}
state = _mm_aesenclast_si128(state, *rk);
}
memcpy(output, &state, 16);
@ -445,12 +446,6 @@ int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
const unsigned char input[16],
unsigned char output[16])
{
#if defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_DECRYPT) {
return MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE;
}
#endif
asm ("movdqu (%3), %%xmm0 \n\t" // load input
"movdqu (%1), %%xmm1 \n\t" // load round key 0
"pxor %%xmm1, %%xmm0 \n\t" // round 0