/// <summary>
/// Get the RSA crypto service provider for the CA public key.
/// </summary>
/// <param name="publicKey">The stream containing the public key data.</param>
/// <param name="password">The password used to decrypt the key within the file.</param>
/// <returns>The RSA cryto service provider with the public key.</returns>
public RSACryptoServiceProvider PublicKeyProvider(StreamReader publicKey, string password = null)
{
Key.OpenSsl.PemReader publicKeyReader = null;
if (String.IsNullOrEmpty(password))
{
// Read the public key file.
publicKeyReader = new Key.OpenSsl.PemReader(publicKey);
}
else
{
// Read the public key file.
publicKeyReader = new Key.OpenSsl.PemReader(publicKey, new PasswordFinder(password));
}
// Get the ras key parameters
Cryptography.Key.X509.X509Certificate x509Certificate = (Cryptography.Key.X509.X509Certificate)publicKeyReader.ReadObject();
// Get the ras key parameters
Cryptography.Key.Crypto.Parameters.RsaKeyParameters rsaPublicKey = (Cryptography.Key.Crypto.Parameters.RsaKeyParameters)x509Certificate.GetPublicKey();
// Assign the rsa parameters.
RSAParameters rsaPublicParam = new RSAParameters();
rsaPublicParam.Exponent = rsaPublicKey.Exponent.ToByteArrayUnsigned();
rsaPublicParam.Modulus = rsaPublicKey.Modulus.ToByteArrayUnsigned();
// Create the encyption provider.
RSACryptoServiceProvider rsaEncryptProvider = new RSACryptoServiceProvider();
rsaEncryptProvider.ImportParameters(rsaPublicParam);
// Return the rsa provider.
return(rsaEncryptProvider);
}
/// <summary>
/// Online certificate status protocol responder.
/// </summary>
/// <param name="signerPublicKey">The signing public key parameters (The certificate to sign OCSP responses with : can be the Certificate Authority Public Key).</param>
/// <param name="certificateAuthorityPublicKey">The certificate authority public key parameters (Corresponding to the revocation information in index file).</param>
/// <param name="certificateAuthorityPrivateKey">The certificate authority private key parameters (The private key to sign OCSP responses with).</param>
public Responder(RSAParameters signerPublicKey, RSAParameters certificateAuthorityPublicKey, RSAParameters certificateAuthorityPrivateKey)
{
_publicKeyCA =
new Cryptography.Key.Crypto.Parameters.RsaKeyParameters(false,
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPublicKey.Modulus),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPublicKey.Exponent));
_publicKeySig =
new Cryptography.Key.Crypto.Parameters.RsaKeyParameters(false,
new Cryptography.Key.Math.BigInteger(1, signerPublicKey.Modulus),
new Cryptography.Key.Math.BigInteger(1, signerPublicKey.Exponent));
_privateKeyCA =
new Cryptography.Key.Crypto.Parameters.RsaPrivateCrtKeyParameters(
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.Modulus),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.Exponent),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.D),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.P),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.Q),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.DP),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.DQ),
new Cryptography.Key.Math.BigInteger(1, certificateAuthorityPrivateKey.InverseQ));
}
