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Fix for AES CBC with NXP MMCAU locking.

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This commit is contained in:
David Garske
2020-08-31 11:27:46 -07:00
parent a9ff89eafa
commit e2b0b11732
1 changed files with 0 additions and 8 deletions
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8
wolfcrypt/src/aes.c
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@ -3393,11 +3393,7 @@ int wc_AesSetIV(Aes* aes, const byte* iv)
for (i = 0; i < AES_BLOCK_SIZE; i++) for (i = 0; i < AES_BLOCK_SIZE; i++)
temp_block[i] ^= iv[i]; temp_block[i] ^= iv[i];
i = wolfSSL_CryptHwMutexLock();
if (i != 0)
return i;
wc_AesEncrypt(aes, temp_block, out + offset); wc_AesEncrypt(aes, temp_block, out + offset);
wolfSSL_CryptHwMutexUnLock();
offset += AES_BLOCK_SIZE; offset += AES_BLOCK_SIZE;
@ -3421,11 +3417,7 @@ int wc_AesSetIV(Aes* aes, const byte* iv)
while (blocks--) { while (blocks--) {
XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE); XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE);
i = wolfSSL_CryptHwMutexLock();
if (i != 0)
return i;
wc_AesDecrypt(aes, in + offset, out + offset); wc_AesDecrypt(aes, in + offset, out + offset);
wolfSSL_CryptHwMutexUnLock();
/* XOR block with IV for CBC */ /* XOR block with IV for CBC */
for (i = 0; i < AES_BLOCK_SIZE; i++) for (i = 0; i < AES_BLOCK_SIZE; i++)