public static byte[] Decrypt(string encryptedText, RetrievePgpKeys keys)
{
AlgorithmAgreement m_algorithmsAgreed = new AlgorithmAgreement(keys.PublicKeys);
byte[] encryptedBytes = Encoding.UTF8.GetBytes(encryptedText);
return(Decrypt(encryptedBytes, keys, m_algorithmsAgreed));
}
public PgpEncryptFile(RetrievePgpKeys keys)
{
if (keys == null)
{
throw new ArgumentNullException("keys");
}
m_encryptionKeys = keys;
m_algorithmsAgreed = new AlgorithmAgreement(keys.PublicKeys);
}
public PgpDecryptFile(string encryptedFilePath, RetrievePgpKeys keys, string outputPath)
{
m_encryptedFilePath = encryptedFilePath;
m_retrievePgpKeys = keys;
m_outputPath = outputPath;
}
public static byte[] Decrypt(byte[] encryptedData, RetrievePgpKeys keys, AlgorithmAgreement agreed)
{
Stream inputStream = new MemoryStream(encryptedData);
inputStream = PgpUtilities.GetDecoderStream(inputStream);
PgpObjectFactory pgpObjFactory = new PgpObjectFactory(inputStream);
PgpEncryptedDataList enc;
PgpObject pgpObj = pgpObjFactory.NextPgpObject();
if (pgpObj is PgpEncryptedDataList)
{
enc = (PgpEncryptedDataList)pgpObj;
}
else
{
enc = (PgpEncryptedDataList)pgpObjFactory.NextPgpObject();
}
PgpPrivateKey privKey = keys.PrivateKey;
PgpPublicKeyEncryptedData pbe = null;
foreach (PgpPublicKeyEncryptedData pked in enc.GetEncryptedDataObjects())
{
if (privKey != null)
{
pbe = pked;
break;
}
}
PgpOnePassSignatureList onePassSigList = null;
PgpSignatureList signatureList = null;
PgpLiteralData literalData = null;
byte[] returnBytes = null;
Stream clear = pbe.GetDataStream(privKey);
PgpObjectFactory plainFactory = new PgpObjectFactory(clear);
for (; ;)
{
PgpObject message = plainFactory.NextPgpObject();
if (message == null)
{
break;
}
if (message is PgpCompressedData)
{
PgpCompressedData compressedData = (PgpCompressedData)message;
plainFactory = new PgpObjectFactory(compressedData.GetDataStream());
}
else if (message is PgpLiteralData)
{
literalData = (PgpLiteralData)message;
Stream unc = literalData.GetInputStream();
returnBytes = Org.BouncyCastle.Utilities.IO.Streams.ReadAll(unc);
unc.Close();
}
else if (message is PgpOnePassSignatureList)
{
onePassSigList = (PgpOnePassSignatureList)message;
}
else if (message is PgpSignatureList)
{
signatureList = (PgpSignatureList)message;
}
else if (message is PgpMarker)
{
}
else
{
throw new PgpException("message contains unknown message type.");
}
}
//Stream unc = literalData.GetInputStream();
//byte[] returnBytes = Org.BouncyCastle.Utilities.IO.Streams.ReadAll(unc);
if ((onePassSigList != null) && (signatureList != null))
{
VerifySignature(onePassSigList, signatureList, keys.SecretKey.PublicKey, returnBytes);
}
//unc.Close();
clear.Close();
inputStream.Close();
return(returnBytes);
}
public static byte[] Decrypt2(byte[] encryptedData, RetrievePgpKeys keys, AlgorithmAgreement agreed)
{
Stream inputStream = new MemoryStream(encryptedData);
inputStream = PgpUtilities.GetDecoderStream(inputStream);
PgpObjectFactory pgpObjFactory = new PgpObjectFactory(inputStream);
PgpEncryptedDataList enc;
PgpObject pgpObj = pgpObjFactory.NextPgpObject();
if (pgpObj is PgpEncryptedDataList)
{
enc = (PgpEncryptedDataList)pgpObj;
}
else
{
enc = (PgpEncryptedDataList)pgpObjFactory.NextPgpObject();
}
PgpPrivateKey privKey = keys.PrivateKey;
PgpPublicKeyEncryptedData pbe = null;
foreach (PgpPublicKeyEncryptedData pked in enc.GetEncryptedDataObjects())
{
if (privKey != null)
{
pbe = pked;
break;
}
}
PgpOnePassSignatureList onePassSigList = null;
PgpSignatureList signatureList = null;
PgpLiteralData literalData = null;
Stream clear = pbe.GetDataStream(privKey);
PgpObjectFactory plainFactory = new PgpObjectFactory(clear);
PgpObject message = plainFactory.NextPgpObject();
if (message is PgpCompressedData)
{
PgpCompressedData compressedData = (PgpCompressedData)message;
Stream compDataIn = compressedData.GetDataStream();
PgpObjectFactory objectFactory = new PgpObjectFactory(compDataIn);
message = objectFactory.NextPgpObject();
if (message is PgpOnePassSignatureList)
{
onePassSigList = (message as PgpOnePassSignatureList);
message = objectFactory.NextPgpObject();
if (message is PgpLiteralData)
{
literalData = (PgpLiteralData)message;
}
message = objectFactory.NextPgpObject();
if (message is PgpSignatureList)
{
signatureList = (PgpSignatureList)message;
}
}
compDataIn.Close();
}
else
{
if (message is PgpOnePassSignatureList)
{
onePassSigList = (message as PgpOnePassSignatureList);
}
message = plainFactory.NextPgpObject();
if (message is PgpLiteralData)
{
literalData = (PgpLiteralData)message;
}
message = plainFactory.NextPgpObject();
if (message is PgpSignatureList)
{
signatureList = (PgpSignatureList)message;
}
}
Stream unc = literalData.GetInputStream();
byte[] returnBytes = Org.BouncyCastle.Utilities.IO.Streams.ReadAll(unc);
if (onePassSigList != null && signatureList != null)
{
VerifySignature(onePassSigList, signatureList, keys.SecretKey.PublicKey, returnBytes);
}
unc.Close();
clear.Close();
inputStream.Close();
return(returnBytes);
}
