/// <summary>
/// Public and secret key provider.
/// </summary>
/// <param name="publicKey">The public key data.</param>
/// <param name="secretKey">The secret key data.</param>
/// <param name="keyID">The unique key id of the public secret key pair.</param>
/// <param name="password">The password used to protect the secret key.</param>
/// <returns>The RSA cryto service provider.</returns>
public RSACryptoServiceProvider PublicKeySecretKey(System.IO.Stream publicKey, System.IO.Stream secretKey, long keyID, string password = null)
{
// Read the public key data.
Key.Bcpg.OpenPgp.PgpPublicKey pgpPublicKey = ReadPublicKey(publicKey);
// Find the secret key
Key.Bcpg.OpenPgp.PgpPrivateKey privateKey = null;
Key.Bcpg.OpenPgp.PgpSecretKeyRingBundle secretKeyRingBundle =
new Key.Bcpg.OpenPgp.PgpSecretKeyRingBundle(Key.Bcpg.OpenPgp.PgpUtilities.GetDecoderStream(secretKey));
// Find the private key (secret key).
privateKey = FindSecretKey(secretKeyRingBundle, keyID, password.ToArray());
// Assign the rsa parameters.
RSAParameters rsaPrivateParam = new RSAParameters();
Key.Crypto.Parameters.RsaKeyParameters rsaPrivatePublic = (Key.Crypto.Parameters.RsaKeyParameters)pgpPublicKey.GetKey();
Key.Crypto.Parameters.RsaPrivateCrtKeyParameters rsaCrtPrivateParam = (Key.Crypto.Parameters.RsaPrivateCrtKeyParameters)privateKey.Key;
// Assign the rsa parameters.
rsaPrivateParam.D = rsaCrtPrivateParam.Exponent.ToByteArrayUnsigned();
rsaPrivateParam.DP = rsaCrtPrivateParam.DP.ToByteArrayUnsigned();
rsaPrivateParam.DQ = rsaCrtPrivateParam.DQ.ToByteArrayUnsigned();
rsaPrivateParam.InverseQ = rsaCrtPrivateParam.QInv.ToByteArrayUnsigned();
rsaPrivateParam.P = rsaCrtPrivateParam.P.ToByteArrayUnsigned();
rsaPrivateParam.Q = rsaCrtPrivateParam.Q.ToByteArrayUnsigned();
rsaPrivateParam.Modulus = rsaPrivatePublic.Modulus.ToByteArrayUnsigned();
rsaPrivateParam.Exponent = rsaPrivatePublic.Exponent.ToByteArrayUnsigned();
// Create the encyption provider.
RSACryptoServiceProvider rsaEncryptProvider = new RSACryptoServiceProvider();
rsaEncryptProvider.ImportParameters(rsaPrivateParam);
// Return the rsa provider.
return(rsaEncryptProvider);
}
public override bool Equals(
object obj)
{
if (obj == this)
{
return(true);
}
RsaPrivateCrtKeyParameters kp = obj as RsaPrivateCrtKeyParameters;
if (kp == null)
{
return(false);
}
return(kp.DP.Equals(dP) &&
kp.DQ.Equals(dQ) &&
kp.Exponent.Equals(this.Exponent) &&
kp.Modulus.Equals(this.Modulus) &&
kp.P.Equals(p) &&
kp.Q.Equals(q) &&
kp.PublicExponent.Equals(e) &&
kp.QInv.Equals(qInv));
}
/// <summary>
/// Computes the hash value of the specified input stream using the specified
/// hash algorithm, and signs the resulting hash value.
/// </summary>
/// <param name="inputStream">The input data for which to compute the hash.</param>
/// <param name="rsaProvider">The RSA crypto service provider.</param>
/// <param name="keyID">The unique key id of the public secret key pair.</param>
/// <param name="hashAlgorithm">The hash algorithm to use to create the hash value.</param>
/// <returns>The signature for the specified data.</returns>
public byte[] SignData(Stream inputStream, RSACryptoServiceProvider rsaProvider, long keyID, Nequeo.Cryptography.HashcodeType hashAlgorithm = HashcodeType.SHA512)
{
MemoryStream output = null;
Key.Bcpg.BcpgOutputStream pgpOutput = null;
try
{
int ch;
output = new MemoryStream();
// Export the signer private key parameters.
RSAParameters rsaPrivateKeySignerParam = rsaProvider.ExportParameters(true);
Key.Crypto.Parameters.RsaPrivateCrtKeyParameters rsaPrivateKeySigner =
new Key.Crypto.Parameters.RsaPrivateCrtKeyParameters(
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.Modulus),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.Exponent),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.D),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.P),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.Q),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.DP),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.DQ),
new Key.Math.BigInteger(1, rsaPrivateKeySignerParam.InverseQ)
);
// Get the private key.
Key.Bcpg.OpenPgp.PgpPrivateKey privateKey = new Key.Bcpg.OpenPgp.PgpPrivateKey(rsaPrivateKeySigner, keyID);
// Create a signature generator.
Key.Bcpg.OpenPgp.PgpSignatureGenerator signatureGenerator =
new Key.Bcpg.OpenPgp.PgpSignatureGenerator(Key.Bcpg.PublicKeyAlgorithmTag.RsaGeneral, GetHashAlgorithm(hashAlgorithm));
signatureGenerator.InitSign(Key.Bcpg.OpenPgp.PgpSignature.BinaryDocument, privateKey);
// Create the output stream.
pgpOutput = new Key.Bcpg.BcpgOutputStream(output);
// Read the input stream.
while ((ch = inputStream.ReadByte()) >= 0)
{
// Update the generator.
signatureGenerator.Update((byte)ch);
}
// Write the hash to the output stream.
Key.Bcpg.OpenPgp.PgpSignature signature = signatureGenerator.Generate();
signature.Encode(pgpOutput);
// Return the signed value.
return(output.ToArray());
}
catch (Exception)
{
throw;
}
finally
{
if (output != null)
{
output.Close();
}
if (pgpOutput != null)
{
pgpOutput.Close();
}
}
}
