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crypt32: Factor out cng_prepare_signature().

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Paul Gofman 2023-06-29 11:53:28 -06:00 committed by Alexandre Julliard
parent 6b8cf4dcd3
commit 8436f03862
1 changed files with 15 additions and 10 deletions
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25
dlls/crypt32/cert.c
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@ -2810,7 +2810,18 @@ static BOOL CNG_PrepareSignatureECC(BYTE *encoded_sig, DWORD encoded_size, BYTE
return TRUE;
}
static BOOL CNG_PrepareSignature(CERT_PUBLIC_KEY_INFO *pubKeyInfo, const CERT_SIGNED_CONTENT_INFO *signedCert,
static BOOL cng_prepare_signature(const char *alg_oid, BYTE *encoded_sig, DWORD encoded_sig_len,
BYTE **sig_value, DWORD *sig_len)
{
if (!strcmp(alg_oid, szOID_ECC_PUBLIC_KEY))
return CNG_PrepareSignatureECC(encoded_sig, encoded_sig_len, sig_value, sig_len);
FIXME("Unsupported public key type: %s\n", debugstr_a(alg_oid));
SetLastError(NTE_BAD_ALGID);
return FALSE;
}
static BOOL CNG_PrepareCertSignature(CERT_PUBLIC_KEY_INFO *pubKeyInfo, const CERT_SIGNED_CONTENT_INFO *signedCert,
BYTE **sig_value, DWORD *sig_len)
{
BYTE *encoded_sig;
@ -2832,14 +2843,8 @@ static BOOL CNG_PrepareSignature(CERT_PUBLIC_KEY_INFO *pubKeyInfo, const CERT_SI
for (i = 0; i < signedCert->Signature.cbData; i++)
encoded_sig[i] = signedCert->Signature.pbData[signedCert->Signature.cbData - i - 1];
if (!strcmp(pubKeyInfo->Algorithm.pszObjId, szOID_ECC_PUBLIC_KEY))
ret = CNG_PrepareSignatureECC(encoded_sig, signedCert->Signature.cbData, sig_value, sig_len);
else
{
FIXME("Unsupported public key type: %s\n", debugstr_a(pubKeyInfo->Algorithm.pszObjId));
SetLastError(NTE_BAD_ALGID);
}
ret = cng_prepare_signature(pubKeyInfo->Algorithm.pszObjId, encoded_sig, signedCert->Signature.cbData,
sig_value, sig_len);
CryptMemFree(encoded_sig);
return ret;
}
@ -2859,7 +2864,7 @@ static BOOL CNG_VerifySignature(HCRYPTPROV_LEGACY hCryptProv, DWORD dwCertEncodi
ret = CNG_CalcHash(info->pwszCNGAlgid, signedCert, &hash_value, &hash_len);
if (ret)
{
ret = CNG_PrepareSignature(pubKeyInfo, signedCert, &sig_value, &sig_len);
ret = CNG_PrepareCertSignature(pubKeyInfo, signedCert, &sig_value, &sig_len);
if (ret)
{
status = BCryptVerifySignature(key, NULL, hash_value, hash_len, sig_value, sig_len, 0);