/** Creates a new instance of AESCipher */
public AESCipherCBCnoPad(bool forEncryption, byte[] key)
{
IBlockCipher aes = new AesFastEngine();
cbc = new CbcBlockCipher(aes);
KeyParameter kp = new KeyParameter(key);
cbc.Init(forEncryption, kp);
}
public override void PerformTest()
{
byte[] key = Hex.Decode("9661410AB797D8A9EB767C21172DF6C7");
byte[] iv = Hex.Decode("4B5C2F003E67F39557A8D26F3DA2B155");
ICipherParameters kp = new KeyParameter(key);
ICipherParameters kpwiv = new ParametersWithIV(kp, iv);
VmpcKsa3Engine engine = new VmpcKsa3Engine();
try
{
engine.Init(true, kp);
Fail("Init failed to throw expected exception");
}
catch (ArgumentException)
{
// Expected
}
engine.Init(true, kpwiv);
checkEngine(engine);
engine.Reset();
byte[] output = checkEngine(engine);
engine.Init(false, kpwiv);
byte[] recovered = new byte[output.Length];
engine.ProcessBytes(output, 0, output.Length, recovered, 0);
if (!Arrays.AreEqual(input, recovered))
{
Fail("decrypted bytes differ from original bytes");
}
}
public void DecodeCryptogram(string key)
{
byte[] result = new byte[cryptogramByte.Count];
byte[] pass = Encoding.ASCII.GetBytes(key);
try
{
RC4Engine rc4 = new RC4Engine();
KeyParameter keyParam = new KeyParameter(pass);
rc4.Init(true, keyParam);
rc4.ProcessBytes(cryptogramByte.ToArray(), 0, cryptogramByte.Count, result, 0);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
if (CheckDecryptedText(result))
{
Console.Write("klucz: " + key + ": ");
foreach (var c in result)
{
if (c != 0)
{
Console.Write((char)c);
}
}
Console.WriteLine();
}
}
public override void PerformTest()
{
ICipherParameters kp = new KeyParameter(
Hex.Decode("9661410AB797D8A9EB767C21172DF6C7"));
ICipherParameters kpwiv = new ParametersWithIV(kp,
Hex.Decode("4B5C2F003E67F39557A8D26F3DA2B155"));
int offset = 117;
byte[] m = new byte[512];
for (int i = 0; i < 256; i++)
{
m[offset + i] = (byte)i;
}
VmpcMac mac = new VmpcMac();
mac.Init(kpwiv);
mac.BlockUpdate(m, offset, 256);
byte[] output = new byte[20];
mac.DoFinal(output, 0);
if (!Arrays.AreEqual(output, output1))
{
Fail("Fail",
Hex.ToHexString(output1),
Hex.ToHexString(output));
}
}
/// <exception cref="IOException"></exception>
public Chacha20Poly1305(TlsContext context)
{
if (!TlsUtilities.IsTlsV12(context))
throw new TlsFatalAlert(AlertDescription.internal_error);
this.context = context;
byte[] key_block = TlsUtilities.CalculateKeyBlock(context, 64);
KeyParameter client_write_key = new KeyParameter(key_block, 0, 32);
KeyParameter server_write_key = new KeyParameter(key_block, 32, 32);
this.encryptCipher = new ChaChaEngine(20);
this.decryptCipher = new ChaChaEngine(20);
KeyParameter encryptKey, decryptKey;
if (context.IsServer)
{
encryptKey = server_write_key;
decryptKey = client_write_key;
}
else
{
encryptKey = client_write_key;
decryptKey = server_write_key;
}
byte[] dummyNonce = new byte[8];
this.encryptCipher.Init(true, new ParametersWithIV(encryptKey, dummyNonce));
this.decryptCipher.Init(false, new ParametersWithIV(decryptKey, dummyNonce));
}
private void blockCheck(
PaddedBufferedBlockCipher cipher,
IBlockCipherPadding padding,
KeyParameter key,
byte[] data)
{
byte[] outBytes = new byte[data.Length + 8];
byte[] dec = new byte[data.Length];
try
{
cipher.Init(true, key);
int len = cipher.ProcessBytes(data, 0, data.Length, outBytes, 0);
len += cipher.DoFinal(outBytes, len);
cipher.Init(false, key);
int decLen = cipher.ProcessBytes(outBytes, 0, len, dec, 0);
decLen += cipher.DoFinal(dec, decLen);
if (!AreEqual(data, dec))
{
Fail("failed to decrypt - i = " + data.Length + ", padding = " + padding.PaddingName);
}
}
catch (Exception e)
{
Fail("Exception - " + e.ToString(), e);
}
}
protected virtual ParametersWithIV CreateParametersWithIV(KeyParameter key,
byte[] buf, ref int off, int len)
{
ParametersWithIV ivParams = new ParametersWithIV(key, buf, off, len);
off += len;
return ivParams;
}
public void Init(
bool forWrapping,
ICipherParameters parameters)
{
this.forWrapping = forWrapping;
if (parameters is ParametersWithRandom)
{
parameters = ((ParametersWithRandom) parameters).Parameters;
}
if (parameters is KeyParameter)
{
this.param = (KeyParameter) parameters;
}
else if (parameters is ParametersWithIV)
{
ParametersWithIV pIV = (ParametersWithIV) parameters;
byte[] iv = pIV.GetIV();
if (iv.Length != 8)
throw new ArgumentException("IV length not equal to 8", "parameters");
this.iv = iv;
this.param = (KeyParameter) pIV.Parameters;
}
else
{
// TODO Throw an exception for bad parameters?
}
}
public RecipientInfo Generate(KeyParameter contentEncryptionKey, SecureRandom random)
{
byte[] keyBytes = contentEncryptionKey.GetKey();
string rfc3211WrapperName = Helper.GetRfc3211WrapperName(keyEncryptionKeyOID);
IWrapper keyWrapper = Helper.CreateWrapper(rfc3211WrapperName);
// Note: In Java build, the IV is automatically generated in JCE layer
int ivLength = Platform.StartsWith(rfc3211WrapperName, "DESEDE") ? 8 : 16;
byte[] iv = new byte[ivLength];
random.NextBytes(iv);
ICipherParameters parameters = new ParametersWithIV(keyEncryptionKey, iv);
keyWrapper.Init(true, new ParametersWithRandom(parameters, random));
Asn1OctetString encryptedKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
DerSequence seq = new DerSequence(
new DerObjectIdentifier(keyEncryptionKeyOID),
new DerOctetString(iv));
AlgorithmIdentifier keyEncryptionAlgorithm = new AlgorithmIdentifier(
PkcsObjectIdentifiers.IdAlgPwriKek, seq);
return new RecipientInfo(new PasswordRecipientInfo(
keyDerivationAlgorithm, keyEncryptionAlgorithm, encryptedKey));
}
private byte[] GenerateDerivedKey(
int dkLen)
{
int hLen = hMac.GetMacSize();
int l = (dkLen + hLen - 1) / hLen;
byte[] iBuf = new byte[4];
byte[] outBytes = new byte[l * hLen];
int outPos = 0;
ICipherParameters param = new KeyParameter(mPassword);
hMac.Init(param);
for (int i = 1; i <= l; i++)
{
// Increment the value in 'iBuf'
int pos = 3;
while (++iBuf[pos] == 0)
{
--pos;
}
F(mSalt, mIterationCount, iBuf, outBytes, outPos);
outPos += hLen;
}
return outBytes;
}
private IBufferedCipher CreateRijndael(WinzipAesEncryptionData winzipAesEncryptionData)
{
var blockCipher = new BufferedBlockCipher(new RijndaelEngine());
var param = new KeyParameter(winzipAesEncryptionData.KeyBytes);
blockCipher.Init(true, param);
return blockCipher;
}
/**
* Base constructor.
*
* @param key key to be used by underlying cipher
* @param macSize macSize in bits
* @param nonce nonce to be used
* @param associatedText associated text, if any
*/
public CcmParameters(KeyParameter key, int macSize, byte[] nonce, byte[] associatedText)
{
this.key = key;
this.nonce = nonce;
this.macSize = macSize;
this.associatedText = associatedText;
}
private byte[] Hash()
{
byte[] array = DataConverter.BigEndian.GetBytes(block);
ICipherParameters param = new KeyParameter(password);
hMac.Init(param);
hMac.BlockUpdate(salt, 0, salt.Length);
hMac.BlockUpdate(array, 0, array.Length);
byte[] array2 = new byte[20];
hMac.DoFinal(array2, 0);
hMac.Init(param);
byte[] array3 = new byte[20];
Buffer.BlockCopy(array2, 0, array3, 0, 20);
int num = 2;
while (num <= (long)((ulong)iterations))
{
hMac.BlockUpdate(array2, 0, array2.Length);
hMac.DoFinal(array2, 0);
for (int i = 0; i < 20; i++)
{
array3[i] ^= array2[i];
}
num++;
}
block += 1u;
return array3;
}
private static ParametersWithIV CreateParametersWithIV(KeyParameter key,
byte[] buf, ref int off, int len)
{
ParametersWithIV ivParams = new ParametersWithIV(key, buf, off, len);
off += len;
return ivParams;
}
/** Creates a new instance of AESCipher */
public AESCipher(bool forEncryption, byte[] key, byte[] iv) {
IBlockCipher aes = new AesFastEngine();
IBlockCipher cbc = new CbcBlockCipher(aes);
bp = new PaddedBufferedBlockCipher(cbc);
KeyParameter kp = new KeyParameter(key);
ParametersWithIV piv = new ParametersWithIV(kp, iv);
bp.Init(forEncryption, piv);
}
/**
* Base constructor.
*
* @param key key to be used by underlying cipher
* @param macSize macSize in bits
* @param nonce nonce to be used
* @param associatedText associated text, if any
*/
public CcmParameters(
KeyParameter key,
int macSize,
byte[] nonce,
byte[] associatedText)
: base(key, macSize, nonce, associatedText)
{
}
private static byte[] Decrypt(byte[] bytes, byte[] key)
{
var engine = new BlowfishEngine();
var chiper = new PaddedBufferedBlockCipher(engine);
var keyParameter = new KeyParameter(key);
chiper.Init(false, keyParameter);
return chiper.DoFinal(bytes);
}
private void checkKeyParameter(
KeyParameter key,
Type expectedType,
byte[] expectedBytes)
{
Assert.IsTrue(expectedType.IsInstanceOfType(key));
Assert.IsTrue(Arrays.AreEqual(expectedBytes, key.GetKey()));
}
/// <exception cref="IOException"></exception>
public TlsAeadCipher(TlsContext context, IAeadBlockCipher clientWriteCipher, IAeadBlockCipher serverWriteCipher,
int cipherKeySize, int macSize)
{
if (!TlsUtilities.IsTlsV12(context))
throw new TlsFatalAlert(AlertDescription.internal_error);
this.context = context;
this.macSize = macSize;
// NOTE: Valid for RFC 5288/6655 ciphers but may need review for other AEAD ciphers
this.nonce_explicit_length = 8;
// TODO SecurityParameters.fixed_iv_length
int fixed_iv_length = 4;
int key_block_size = (2 * cipherKeySize) + (2 * fixed_iv_length);
byte[] key_block = TlsUtilities.CalculateKeyBlock(context, key_block_size);
int offset = 0;
KeyParameter client_write_key = new KeyParameter(key_block, offset, cipherKeySize);
offset += cipherKeySize;
KeyParameter server_write_key = new KeyParameter(key_block, offset, cipherKeySize);
offset += cipherKeySize;
byte[] client_write_IV = Arrays.CopyOfRange(key_block, offset, offset + fixed_iv_length);
offset += fixed_iv_length;
byte[] server_write_IV = Arrays.CopyOfRange(key_block, offset, offset + fixed_iv_length);
offset += fixed_iv_length;
if (offset != key_block_size)
throw new TlsFatalAlert(AlertDescription.internal_error);
KeyParameter encryptKey, decryptKey;
if (context.IsServer)
{
this.encryptCipher = serverWriteCipher;
this.decryptCipher = clientWriteCipher;
this.encryptImplicitNonce = server_write_IV;
this.decryptImplicitNonce = client_write_IV;
encryptKey = server_write_key;
decryptKey = client_write_key;
}
else
{
this.encryptCipher = clientWriteCipher;
this.decryptCipher = serverWriteCipher;
this.encryptImplicitNonce = client_write_IV;
this.decryptImplicitNonce = server_write_IV;
encryptKey = client_write_key;
decryptKey = server_write_key;
}
byte[] dummyNonce = new byte[fixed_iv_length + nonce_explicit_length];
this.encryptCipher.Init(true, new AeadParameters(encryptKey, 8 * macSize, dummyNonce));
this.decryptCipher.Init(false, new AeadParameters(decryptKey, 8 * macSize, dummyNonce));
}
// protected CipherTest(
// SimpleTest[] tests)
// {
// _tests = tests;
// }
protected CipherTest(
SimpleTest[] tests,
IBlockCipher engine,
KeyParameter validKey)
{
_tests = tests;
_engine = engine;
_validKey = validKey;
}
private void initCipher(bool forEncryption, IBlockCipher cipher,
byte[] key_block, int key_size, int key_offset, int iv_offset)
{
KeyParameter key_parameter = new KeyParameter(key_block, key_offset,
key_size);
ParametersWithIV parameters_with_iv = new ParametersWithIV(
key_parameter, key_block, iv_offset, cipher.GetBlockSize());
cipher.Init(forEncryption, parameters_with_iv);
}
static JwtKey LoadSymmetricKey(byte[] keyBytes)
{
ICipherParameters key = new KeyParameter(keyBytes);
return new JwtKey
{
PrivateKey = key,
PublicKey = key,
};
}
internal PbeMethod(
SymmetricKeyAlgorithmTag encAlgorithm,
S2k s2k,
KeyParameter key)
{
this.encAlgorithm = encAlgorithm;
this.s2k = s2k;
this.key = key;
}
static DataDecoder()
{
byte[] bKey = System.Text.Encoding.ASCII.GetBytes("Implict error #56");
var tiger = new TigerDigest();
tiger.BlockUpdate(bKey, 0, bKey.Length);
var bb = new byte[24];
tiger.DoFinal(bb, 0);
Key = new KeyParameter(bb);
}
public void ThreadRun()
{
int i = 0;
byte[] clearText = new byte[kryptogram.Length];
string czescKlucza1 = "";
while (i <= szukaj.max)
{
i = szukaj.wykonane();
if (i <= szukaj.max)
{
czescKlucza1 = i.ToString("X");
while (czescKlucza1.Length < 8)
{
czescKlucza1 = "0" + czescKlucza1;
}
String klucz = czescKlucza1.ToLower() + czescKlucza2;
try
{
RC4Engine rc4 = new RC4Engine();
KeyParameter keyParam = new KeyParameter(System.Text.Encoding.ASCII.GetBytes(klucz));
rc4.Init(false, keyParam);
rc4.ProcessBytes(kryptogram, 0, kryptogram.Length, clearText, 0);
}
catch (Exception e)
{
}
bool zgodne = true;
for (int j = 0; j < clearText.Length; j++)
{
if (!alfabet.lista_znakow.Contains((char)clearText[j]))
{
zgodne = false;
}
}
//jeśli znalazl dobry klucz
if (zgodne)
{
Console.Write("Wiadomosc : ");
foreach (byte x in clearText)
{
Console.Write("{0} ", (char)x);
}
Console.WriteLine("");
Console.WriteLine(" klucz: {0}",klucz);
szukaj.ileZrobiono = szukaj.max;
}
}
}
}
/**
* Generate a new instance of an TlsMac.
*
* @param digest The digest to use.
* @param key_block A byte-array where the key for this mac is located.
* @param offset The number of bytes to skip, before the key starts in the buffer.
* @param len The length of the key.
*/
internal TlsMac(
IDigest digest,
byte[] key_block,
int offset,
int len)
{
this.mac = new HMac(digest);
KeyParameter param = new KeyParameter(key_block, offset, len);
this.mac.Init(param);
this.seqNo = 0;
}
public RecipientInfo Generate(KeyParameter contentEncryptionKey, SecureRandom random)
{
byte[] keyBytes = contentEncryptionKey.GetKey();
IWrapper keyWrapper = Helper.CreateWrapper(keyEncryptionAlgorithm.Algorithm.Id);
keyWrapper.Init(true, new ParametersWithRandom(keyEncryptionKey, random));
Asn1OctetString encryptedKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
return new RecipientInfo(new KekRecipientInfo(kekIdentifier, keyEncryptionAlgorithm, encryptedKey));
}
public override ICipherParameters GenParam()
{
string pass = SafeUtil.GenPass(_Uk.TbPass.Text, _Uk.TbPass.MaxLength);
ICipherParameters param = new KeyParameter(Encoding.Default.GetBytes(pass));
if (_Uk.TbSalt.Visible)
{
pass = SafeUtil.GenPass(_Uk.TbSalt.Text, _Uk.TbSalt.MaxLength);
param = new ParametersWithIV(param, Encoding.Default.GetBytes(pass));
}
return param;
}
/**
* Construct a X9.31 secure random generator using the passed in engine and key. If predictionResistant is true the
* generator will be reseeded on each request.
*
* @param engine a block cipher to use as the operator.
* @param key the block cipher key to initialise engine with.
* @param predictionResistant true if engine to be reseeded on each use, false otherwise.
* @return a SecureRandom.
*/
public X931SecureRandom Build(IBlockCipher engine, KeyParameter key, bool predictionResistant)
{
if (mDateTimeVector == null)
{
mDateTimeVector = new byte[engine.GetBlockSize()];
Pack.UInt64_To_BE((ulong)DateTimeUtilities.CurrentUnixMs(), mDateTimeVector, 0);
}
engine.Init(true, key);
return new X931SecureRandom(mRandom, new X931Rng(engine, mDateTimeVector, mEntropySourceProvider.Get(engine.GetBlockSize() * 8)), predictionResistant);
}
/// <exception cref="IOException"></exception>
public Chacha20Poly1305(TlsContext context)
{
if (!TlsUtilities.IsTlsV12(context))
throw new TlsFatalAlert(AlertDescription.internal_error);
this.context = context;
int cipherKeySize = 32;
// TODO SecurityParameters.fixed_iv_length
int fixed_iv_length = 12;
// TODO SecurityParameters.record_iv_length = 0
int key_block_size = (2 * cipherKeySize) + (2 * fixed_iv_length);
byte[] key_block = TlsUtilities.CalculateKeyBlock(context, key_block_size);
int offset = 0;
KeyParameter client_write_key = new KeyParameter(key_block, offset, cipherKeySize);
offset += cipherKeySize;
KeyParameter server_write_key = new KeyParameter(key_block, offset, cipherKeySize);
offset += cipherKeySize;
byte[] client_write_IV = Arrays.CopyOfRange(key_block, offset, offset + fixed_iv_length);
offset += fixed_iv_length;
byte[] server_write_IV = Arrays.CopyOfRange(key_block, offset, offset + fixed_iv_length);
offset += fixed_iv_length;
if (offset != key_block_size)
throw new TlsFatalAlert(AlertDescription.internal_error);
this.encryptCipher = new ChaCha7539Engine();
this.decryptCipher = new ChaCha7539Engine();
KeyParameter encryptKey, decryptKey;
if (context.IsServer)
{
encryptKey = server_write_key;
decryptKey = client_write_key;
this.encryptIV = server_write_IV;
this.decryptIV = client_write_IV;
}
else
{
encryptKey = client_write_key;
decryptKey = server_write_key;
this.encryptIV = client_write_IV;
this.decryptIV = server_write_IV;
}
this.encryptCipher.Init(true, new ParametersWithIV(encryptKey, encryptIV));
this.decryptCipher.Init(false, new ParametersWithIV(decryptKey, decryptIV));
}
/// <summary>
/// Calculates the 64 byte checksum in accordance with HMAC-SHA512
/// </summary>
/// <param name="input">The bytes to derive the checksum from</param>
/// <param name="offset">Where to start calculating checksum in the input bytes</param>
/// <param name="length">Length of buytes to use to calculate checksum</param>
/// <param name="hmacKey">HMAC Key used to generate the checksum (note differing HMAC Keys provide unique checksums)</param>
/// <returns></returns>
public static byte[] HmacSha512Digest(byte[] input, int offset, int length, byte[] hmacKey)
{
byte[] output = new byte[64];
HMac _hmacsha512Obj;
_hmacsha512Obj = new HMac(new Sha512Digest());
ICipherParameters param = new Org.BouncyCastle.Crypto.Parameters.KeyParameter(hmacKey);
_hmacsha512Obj.Init(param);
_hmacsha512Obj.BlockUpdate(input, offset, length);
_hmacsha512Obj.DoFinal(output, 0);
return(output);
}
/// <summary>
/// 哈希计算
/// </summary>
/// <param name="data">输入字符串</param>
/// <param name="key">密钥KEY</param>
/// <param name="algorithm">密文算法，参考Algorithms.cs中提供的HMac algorithm</param>
/// <returns>哈希值</returns>
public static byte[] Compute(string data, string key, string algorithm)
{
if (string.IsNullOrEmpty(data))
{
throw new ArgumentNullException(nameof(data));
}
if (string.IsNullOrEmpty(key))
{
throw new ArgumentNullException(nameof(key));
}
var keyParameter = new Org.BouncyCastle.Crypto.Parameters.KeyParameter(Encoding.UTF8.GetBytes(key));
var input = Encoding.UTF8.GetBytes(data);
var mac = MacUtilities.GetMac(algorithm);
mac.Init(keyParameter);
mac.BlockUpdate(input, 0, input.Length);
return(MacUtilities.DoFinal(mac));
}
public FpeParameters(KeyParameter key, int radix, byte[] tweak) : this(key, radix, tweak, false)
{
}
/**
* Base constructor.
*
* @param key key to be used by underlying cipher
* @param macSize macSize in bits
* @param nonce nonce to be used
*/
public AeadParameters(KeyParameter key, int macSize, byte[] nonce)
: this(key, macSize, nonce, null)
{
}
public CcmParameters(KeyParameter key, int macSize, byte[] nonce, byte[] associatedText) : base(key, macSize, nonce, associatedText)
{
}
public TweakableBlockCipherParameters(KeyParameter key, byte[] tweak)
{
this.key = key;
this.tweak = Arrays.Clone(tweak);
}