/*
* USHAReset
*
* Description:
* This function will initialize the SHA Context in preparation
* for computing a new SHA message digest.
*
* Parameters:
* context: [in/out]
* The context to reset.
* whichSha: [in]
* Selects which SHA reset to call
*
* Returns:
* sha Error Code.
*
*/
int USHAReset(USHAContext *context, enum SHAversion whichSha)
{
if (!context) return shaNull;
context->whichSha = whichSha;
switch (whichSha) {
case SHA1: return SHA1Reset((SHA1Context*)&context->ctx);
case SHA224: return SHA224Reset((SHA224Context*)&context->ctx);
case SHA256: return SHA256Reset((SHA256Context*)&context->ctx);
case SHA384: return SHA384Reset((SHA384Context*)&context->ctx);
case SHA512: return SHA512Reset((SHA512Context*)&context->ctx);
default: return shaBadParam;
}
}
void md_map_sh512(uint8_t *hash, const uint8_t *msg, int len) {
SHA512Context ctx;
if (SHA512Reset(&ctx) != shaSuccess) {
THROW(ERR_NO_VALID);
}
if (SHA512Input(&ctx, msg, len) != shaSuccess) {
THROW(ERR_NO_VALID);
}
if (SHA512Result(&ctx, hash) != shaSuccess) {
THROW(ERR_NO_VALID);
}
}
/*!
Resets the object.
*/
void QCryptographicHash::reset()
{
switch (d->method) {
case Sha1:
sha1InitState(&d->sha1Context);
break;
#ifdef QT_CRYPTOGRAPHICHASH_ONLY_SHA1
default:
Q_ASSERT_X(false, "QCryptographicHash", "Method not compiled in");
Q_UNREACHABLE();
break;
#else
case Md4:
md4_init(&d->md4Context);
break;
case Md5:
MD5Init(&d->md5Context);
break;
case Sha224:
SHA224Reset(&d->sha224Context);
break;
case Sha256:
SHA256Reset(&d->sha256Context);
break;
case Sha384:
SHA384Reset(&d->sha384Context);
break;
case Sha512:
SHA512Reset(&d->sha512Context);
break;
case RealSha3_224:
case Keccak_224:
sha3Init(&d->sha3Context, 224);
break;
case RealSha3_256:
case Keccak_256:
sha3Init(&d->sha3Context, 256);
break;
case RealSha3_384:
case Keccak_384:
sha3Init(&d->sha3Context, 384);
break;
case RealSha3_512:
case Keccak_512:
sha3Init(&d->sha3Context, 512);
break;
#endif
}
d->result.clear();
}
/* SHA512 Low Level Interface */
int sha512_low_init(SHA512Context *context) {
return SHA512Reset(context);
}