protected override void ProcessRecord()
{
var privateKey = PrivateKey.ToByteArrayFromBase64String();
var publicKey = PublicKey.ToByteArrayFromBase64String();
if (ParameterSetName == "File")
{
if (ReplaceFile.IsTrue())
OutFile = File;
byte[] fileEndData = new byte[40];
long dataEnd = 0;
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
{
source.Seek(-24, SeekOrigin.End);
dataEnd = source.Position;
source.Read(fileEndData, 0, 24);
}
byte[] nonce = new byte[24];
Array.Copy(fileEndData, 0, nonce, 0, 24);
using (ICryptoTransform transform = new SodiumCryptoTransform(nonce, privateKey, publicKey, SodiumCryptoTransform.Direction.Decrypt))
using (FileStream destination = new FileStream(OutFile, FileMode.CreateNew, FileAccess.Write, FileShare.None))
using (CryptoStream cryptoStream = new CryptoStream(destination, transform, CryptoStreamMode.Write))
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
source.CopyTo(cryptoStream);
}
else
{
byte[] message;
message = PublicKeyBox.Open(rawMessage, Nonce.ToByteArrayFromBase64String(), privateKey, publicKey);
if (Raw.IsTrue())
{
WriteObject(message);
}
else
{
var plainMessage = message.ToString(Encoding);
WriteObject(plainMessage);
}
}
}
protected override void ProcessRecord()
{
var key = Key.ToByteArrayFromBase64String();
if (ParameterSetName == "File")
{
if (ReplaceFile.IsTrue())
OutFile = File;
byte[] fileEndData = null;
if (algo == SodiumCryptoTransform.SymmetricAlgorithm.ChaCha20)
fileEndData = new byte[8];
else
fileEndData = new byte[24];
long dataEnd = 0;
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
{
source.Seek(-fileEndData.Length, SeekOrigin.End);
dataEnd = source.Position;
source.Read(fileEndData, 0, fileEndData.Length);
}
byte[] nonce = new byte[fileEndData.Length];
Array.Copy(fileEndData, 0, nonce, 0, fileEndData.Length);
using (ICryptoTransform transform = new SodiumCryptoTransform(nonce, key, SodiumCryptoTransform.Direction.Decrypt, algo))
using (FileStream destination = new FileStream(OutFile, FileMode.CreateNew, FileAccess.Write, FileShare.None))
using (CryptoStream cryptoStream = new CryptoStream(destination, transform, CryptoStreamMode.Write))
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
source.CopyTo(cryptoStream);
}
else
{
byte[] message;
byte[] nonce = Nonce.ToByteArrayFromBase64String();
switch (algo)
{
case SodiumCryptoTransform.SymmetricAlgorithm.ChaCha20:
message = StreamEncryption.DecryptChaCha20(rawMessage, nonce, key);
break;
case SodiumCryptoTransform.SymmetricAlgorithm.XSalsa:
message = StreamEncryption.Decrypt(rawMessage, nonce, key);
break;
case SodiumCryptoTransform.SymmetricAlgorithm.Default:
default:
message = SecretBox.Open(rawMessage, nonce, key);
break;
}
if (Raw.IsTrue())
{
WriteObject(message);
}
else
{
var plainMessage = message.ToString(Encoding);
WriteObject(plainMessage);
}
}
}
protected override void ProcessRecord()
{
var nonce = SecretBox.GenerateNonce();
var privateKey = PrivateKey.ToByteArrayFromBase64String();
var publicKey = PublicKey.ToByteArrayFromBase64String();
if (ParameterSetName == "File")
{
if (ReplaceFile.IsTrue())
OutFile = Path.GetTempFileName();
using (ICryptoTransform transform = new SodiumCryptoTransform(nonce, privateKey, publicKey, SodiumCryptoTransform.Direction.Encrypt))
using (FileStream destination = new FileStream(OutFile, FileMode.CreateNew, FileAccess.Write, FileShare.None))
using (CryptoStream cryptoStream = new CryptoStream(destination, transform, CryptoStreamMode.Write))
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
{
source.CopyTo(cryptoStream);
cryptoStream.FlushFinalBlock();
destination.Write(nonce, 0, nonce.Length);
destination.Flush();
}
if (ReplaceFile.IsTrue())
{
System.IO.File.Delete(File);
System.IO.File.Move(OutFile, File);
}
}
else
{
var encryptedMessage = PublicKeyBox.Create(rawMessage, nonce, privateKey, publicKey);
var results = new EncryptedMessage()
{
EncryptedType = "Asymetric",
Message = NoCompression.IsTrue() ? encryptedMessage.ToBase64String() : encryptedMessage.Compress(),
Nonce = nonce.ToBase64String(),
Compressed = !NoCompression
};
WriteObject(results);
}
}
protected override void ProcessRecord()
{
var key = Key.ToByteArrayFromBase64String();
if (ParameterSetName == "File")
{
if (ReplaceFile.IsTrue())
OutFile = Path.GetTempFileName();
using (ICryptoTransform transform = new SodiumCryptoTransform(nonce, key, SodiumCryptoTransform.Direction.Encrypt, algo))
using (FileStream destination = new FileStream(OutFile, FileMode.CreateNew, FileAccess.Write, FileShare.None))
using (CryptoStream cryptoStream = new CryptoStream(destination, transform, CryptoStreamMode.Write))
using (FileStream source = new FileStream(File, FileMode.Open, FileAccess.Read, FileShare.Read))
{
source.CopyTo(cryptoStream);
cryptoStream.FlushFinalBlock();
destination.Write(nonce, 0, nonce.Length);
destination.Flush();
}
if (ReplaceFile.IsTrue())
{
System.IO.File.Delete(File);
System.IO.File.Move(OutFile, File);
}
}
else
{
byte[] encryptedMessage = null;
switch (algo)
{
case SodiumCryptoTransform.SymmetricAlgorithm.ChaCha20:
encryptedMessage = StreamEncryption.EncryptChaCha20(rawMessage, nonce, key);
break;
case SodiumCryptoTransform.SymmetricAlgorithm.XSalsa:
encryptedMessage = StreamEncryption.Encrypt(rawMessage, nonce, key);
break;
case SodiumCryptoTransform.SymmetricAlgorithm.Default:
default:
encryptedMessage = SecretBox.Create(rawMessage, nonce, key);
break;
}
var results = new EncryptedMessage()
{
EncryptedType = algo.GetDescription(),
Message = NoCompression.IsTrue() ? encryptedMessage.ToBase64String() : encryptedMessage.Compress(),
Nonce = nonce.ToBase64String(),
Compressed = !NoCompression
};
WriteObject(results);
}
}
