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One more time to quiet clang tidy

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This commit is contained in:
Bill Phipps
2024-09-24 13:43:56 -04:00
parent 5e1db686e1
commit 8aa63e3aad
1 changed files with 37 additions and 35 deletions
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72
wolfcrypt/src/cmac.c
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@ -299,53 +299,55 @@ int wc_CmacFinalNoFree(Cmac* cmac, byte* out, word32* outSz)
NULL); NULL);
if (ret != WC_NO_ERR_TRACE(CRYPTOCB_UNAVAILABLE)) if (ret != WC_NO_ERR_TRACE(CRYPTOCB_UNAVAILABLE))
return ret; return ret;
/* Clear CRYPTOCB_UNAVAILABLE return code */ /* Clear CRYPTOCB_UNAVAILABLE return code */
ret = 0; ret = 0;
/* fall-through when unavailable */ /* fall-through when unavailable */
} }
#endif #endif
switch (cmac->type) { if (ret == 0) {
#if !defined(NO_AES) && defined(WOLFSSL_AES_DIRECT) switch (cmac->type) {
case WC_CMAC_AES: #if !defined(NO_AES) && defined(WOLFSSL_AES_DIRECT)
{ case WC_CMAC_AES:
const byte* subKey; {
word32 remainder; const byte* subKey;
word32 remainder;
if (cmac->bufferSz == AES_BLOCK_SIZE) { if (cmac->bufferSz == AES_BLOCK_SIZE) {
subKey = cmac->k1; subKey = cmac->k1;
}
else {
/* ensure we will have a valid remainder value */
if (cmac->bufferSz > AES_BLOCK_SIZE) {
ret = BAD_STATE_E;
break;
} }
remainder = AES_BLOCK_SIZE - cmac->bufferSz; else {
/* ensure we will have a valid remainder value */
if (cmac->bufferSz > AES_BLOCK_SIZE) {
ret = BAD_STATE_E;
break;
}
remainder = AES_BLOCK_SIZE - cmac->bufferSz;
if (remainder == 0) { if (remainder == 0) {
remainder = AES_BLOCK_SIZE; remainder = AES_BLOCK_SIZE;
} }
if (remainder > 1) { if (remainder > 1) {
XMEMSET(cmac->buffer + AES_BLOCK_SIZE - remainder, 0, XMEMSET(cmac->buffer + AES_BLOCK_SIZE - remainder, 0,
remainder); remainder);
} }
cmac->buffer[AES_BLOCK_SIZE - remainder] = 0x80; cmac->buffer[AES_BLOCK_SIZE - remainder] = 0x80;
subKey = cmac->k2; subKey = cmac->k2;
}
xorbuf(cmac->buffer, cmac->digest, AES_BLOCK_SIZE);
xorbuf(cmac->buffer, subKey, AES_BLOCK_SIZE);
ret = wc_AesEncryptDirect(&cmac->aes, cmac->digest, cmac->buffer);
if (ret == 0) {
XMEMCPY(out, cmac->digest, *outSz);
}
}; break;
#endif /* !NO_AES && WOLFSSL_AES_DIRECT */
default :
ret = BAD_FUNC_ARG;
} }
xorbuf(cmac->buffer, cmac->digest, AES_BLOCK_SIZE);
xorbuf(cmac->buffer, subKey, AES_BLOCK_SIZE);
ret = wc_AesEncryptDirect(&cmac->aes, cmac->digest, cmac->buffer);
if (ret == 0) {
XMEMCPY(out, cmac->digest, *outSz);
}
}; break;
#endif /* !NO_AES && WOLFSSL_AES_DIRECT */
default :
ret = BAD_FUNC_ARG;
} }
return ret; return ret;
} }