protected bool Equals(
ElGamalPrivateKeyParameters other)
{
return(other.x.Equals(x) && base.Equals(other));
}
protected bool Equals(
ElGamalPrivateKeyParameters other)
{
return other.x.Equals(x) && base.Equals(other);
}
/// <summary>Extract a <c>PgpPrivateKey</c> from this secret key's encrypted contents.</summary>
public PgpPrivateKey ExtractPrivateKey(
char[] passPhrase)
{
byte[] secKeyData = secret.GetSecretKeyData();
if (secKeyData == null || secKeyData.Length < 1)
return null;
PublicKeyPacket pubPk = secret.PublicKeyPacket;
try
{
byte[] data = ExtractKeyData(passPhrase);
BcpgInputStream bcpgIn = BcpgInputStream.Wrap(new MemoryStream(data, false));
AsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
RsaPublicBcpgKey rsaPub = (RsaPublicBcpgKey)pubPk.Key;
RsaSecretBcpgKey rsaPriv = new RsaSecretBcpgKey(bcpgIn);
RsaPrivateCrtKeyParameters rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPublicBcpgKey dsaPub = (DsaPublicBcpgKey)pubPk.Key;
DsaSecretBcpgKey dsaPriv = new DsaSecretBcpgKey(bcpgIn);
DsaParameters dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPublicBcpgKey elPub = (ElGamalPublicBcpgKey)pubPk.Key;
ElGamalSecretBcpgKey elPriv = new ElGamalSecretBcpgKey(bcpgIn);
ElGamalParameters elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return new PgpPrivateKey(privateKey, KeyId);
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
