private static unsafe byte[] EncodeExtension(X509KeyUsageFlags keyUsages)
{
CAPIBase.CRYPT_BIT_BLOB crypt_bit_blob = new CAPIBase.CRYPT_BIT_BLOB {
cbData = 2,
pbData = new IntPtr((void*) &keyUsages),
cUnusedBits = 0
};
byte[] encodedData = null;
if (!CAPI.EncodeObject("2.5.29.15", new IntPtr((void*) &crypt_bit_blob), out encodedData))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return encodedData;
}
internal CMSG_CTRL_KEY_AGREE_DECRYPT_PARA(int size)
{
this.cbSize = (uint) size;
this.hCryptProv = IntPtr.Zero;
this.dwKeySpec = 0;
this.pKeyAgree = IntPtr.Zero;
this.dwRecipientIndex = 0;
this.dwRecipientEncryptedKeyIndex = 0;
this.OriginatorPublicKey = new CAPIBase.CRYPT_BIT_BLOB();
}