public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
mStream = input;
mLimit = limit;
// The 7z AES encoder/decoder classes do not perform padding, instead they require the input stream to provide a multiple of 16 bytes.
// If the exception below is thrown this means the 7z file is either corrupt or a newer 7z version has been published and we haven't updated yet.
if (((uint)input.Length & 15) != 0)
throw new NotSupportedException("7z requires AES streams to be properly padded.");
int numCyclesPower;
byte[] salt, seed;
Init(info, out numCyclesPower, out salt, out seed);
byte[] password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] key = InitKey(numCyclesPower, salt, password);
using (var aes = Aes.Create())
{
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.None;
mDecoder = aes.CreateDecryptor(key, seed);
}
mBuffer = new byte[4 << 10];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
if (pass.CryptoGetTextPassword() == null)
{
throw new SharpCompress.Common.CryptographicException("Encrypted 7Zip archive has no password specified.");
}
mStream = input;
mLimit = limit;
if (((uint)input.Length & 15) != 0)
{
throw new NotSupportedException("AES decoder does not support padding.");
}
Init(info, out int numCyclesPower, out byte[] salt, out byte[] seed);
byte[] password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[]? key = InitKey(numCyclesPower, salt, password);
if (key == null)
{
throw new InvalidOperationException("Initialized with null key");
}
using (var aes = Aes.Create())
{
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.None;
mDecoder = aes.CreateDecryptor(key, seed);
}
mBuffer = new byte[4 << 10];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
mStream = input;
mLimit = limit;
if (((uint)input.Length & 15) != 0)
{
throw new NotSupportedException("AES decoder does not support padding.");
}
int numCyclesPower;
byte[] salt, seed;
Init(info, out numCyclesPower, out salt, out seed);
byte[] password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] key = InitKey(numCyclesPower, salt, password);
using (var aes = Aes.Create())
{
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.None;
mDecoder = aes.CreateDecryptor(key, seed);
}
mBuffer = new byte[4 << 10];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
mStream = input;
mLimit = limit;
// The 7z AES encoder/decoder classes do not perform padding, instead they require the input stream to provide a multiple of 16 bytes.
// If the exception below is thrown this means the 7z file is either corrupt or a newer 7z version has been published and we haven't updated yet.
if (((uint)input.Length & 15) != 0)
{
throw new NotSupportedException("7z requires AES streams to be properly padded.");
}
int numCyclesPower;
byte[] salt, seed;
Init(info, out numCyclesPower, out salt, out seed);
byte[] password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] key = InitKey(numCyclesPower, salt, password);
using (var aes = Aes.Create())
{
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.None;
mDecoder = aes.CreateDecryptor(key, seed);
}
mBuffer = new byte[4 << 10];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
int num;
byte[] buffer;
byte[] buffer2;
this.mStream = input;
this.mLimit = limit;
if ((((uint) input.Length) & 15) != 0)
{
throw new NotSupportedException("AES decoder does not support padding.");
}
this.Init(info, out num, out buffer, out buffer2);
byte[] bytes = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] rgbKey = this.InitKey(num, buffer, bytes);
using (Rijndael rijndael = Rijndael.Create())
{
rijndael.Mode = CipherMode.CBC;
rijndael.Padding = PaddingMode.None;
this.mDecoder = rijndael.CreateDecryptor(rgbKey, buffer2);
}
this.mBuffer = new byte[0x1000];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
int num;
byte[] buffer;
byte[] buffer2;
this.mStream = input;
this.mLimit = limit;
if ((((uint)input.Length) & 15) != 0)
{
throw new NotSupportedException("AES decoder does not support padding.");
}
this.Init(info, out num, out buffer, out buffer2);
byte[] bytes = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] rgbKey = this.InitKey(num, buffer, bytes);
using (Rijndael rijndael = Rijndael.Create())
{
rijndael.Mode = CipherMode.CBC;
rijndael.Padding = PaddingMode.None;
this.mDecoder = rijndael.CreateDecryptor(rgbKey, buffer2);
}
this.mBuffer = new byte[0x1000];
}
public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
{
mStream = input;
mLimit = limit;
if (((uint) input.Length & 15) != 0)
throw new NotSupportedException("AES decoder does not support padding.");
int numCyclesPower;
byte[] salt, seed;
Init(info, out numCyclesPower, out salt, out seed);
byte[] password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
byte[] key = InitKey(numCyclesPower, salt, password);
using (var aes = Aes.Create())
{
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.None;
mDecoder = aes.CreateDecryptor(key, seed);
}
mBuffer = new byte[4 << 10];
}
