private static uint OidToAlgorithmId(Oid oid) { using (SafeLocalAllocHandle oidHandle = X509Utils.StringToAnsiPtr(oid.Value)) { CapiNative.CRYPT_OID_INFO oidInfo = CapiNative.CryptFindOIDInfo(CapiNative.CRYPT_OID_INFO_OID_KEY, oidHandle, 0); return(oidInfo.Algid); } }
private void DecodeExtension() { uint cbDecoded = 0; SafeLocalAllocHandle decoded = null; SafeLocalAllocHandle pb = X509Utils.StringToAnsiPtr(CAPI.szOID_SUBJECT_KEY_IDENTIFIER); bool result = CAPI.DecodeObject(pb.DangerousGetHandle(), m_rawData, out decoded, out cbDecoded); if (!result) { throw new CryptographicException(Marshal.GetLastWin32Error()); } CAPI.CRYPTOAPI_BLOB pSubjectKeyIdentifier = (CAPI.CRYPTOAPI_BLOB)Marshal.PtrToStructure(decoded.DangerousGetHandle(), typeof(CAPI.CRYPTOAPI_BLOB)); byte[] hexArray = CAPI.BlobToByteArray(pSubjectKeyIdentifier); m_subjectKeyIdentifier = X509Utils.EncodeHexString(hexArray); m_decoded = true; decoded.Dispose(); pb.Dispose(); }