Package org.vngx.jsch.hash

Examples of org.vngx.jsch.hash.Hash.update()


      buffer.putMPInt(K);
      buffer.putBytes(H);
      int letterIndex = buffer.index;
      buffer.putByte((byte) 0x41)// 0x41 = 'A'
      buffer.putBytes(_session.getSessionId());
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sCipherIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'B'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherIV = hash.digest();
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      buffer.putBytes(_session.getSessionId());
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sCipherIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'B'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'C'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sCipherKey = hash.digest();
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      buffer.buffer[letterIndex]++;  // Increment to 'B'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'C'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sCipherKey = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'D'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherKey = hash.digest();
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      buffer.buffer[letterIndex]++;  // Increment to 'C'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sCipherKey = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'D'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherKey = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'E'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sMacIV = hash.digest();
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      buffer.buffer[letterIndex]++;  // Increment to 'D'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cCipherKey = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'E'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sMacIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'F'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cMacIV = hash.digest();
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      buffer.buffer[letterIndex]++;  // Increment to 'E'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] c2sMacIV = hash.digest();

      buffer.buffer[letterIndex]++;  // Increment to 'F'
      hash.update(buffer.buffer, 0, buffer.index);
      byte[] s2cMacIV = hash.digest();

      // Generate server-to-client cipher instance
      _readCipher = CipherManager.getManager().createCipher(proposal.getCipherAlgStoC(), _session);
      while( _readCipher.getBlockSize() > s2cCipherKey.length ) {
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      _readCipher = CipherManager.getManager().createCipher(proposal.getCipherAlgStoC(), _session);
      while( _readCipher.getBlockSize() > s2cCipherKey.length ) {
        buffer.reset();
        buffer.skip(letterIndex);
        buffer.putBytes(s2cCipherKey);
        hash.update(buffer.buffer, 0, buffer.index);
        s2cCipherKey = Util.join(s2cCipherKey, hash.digest());
      }
      _readCipher.init(Cipher.DECRYPT_MODE, s2cCipherKey, s2cCipherIV);
      _readCipherSize = _readCipher.getIVSize();
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      _writeCipher = CipherManager.getManager().createCipher(proposal.getCipherAlgCtoS(), _session);
      while( _writeCipher.getBlockSize() > c2sCipherKey.length ) {
        buffer.reset();
        buffer.skip(letterIndex);
        buffer.putBytes(c2sCipherKey);
        hash.update(buffer.buffer, 0, buffer.index);
        c2sCipherKey = Util.join(c2sCipherKey, hash.digest());
      }
      _writeCipher.init(Cipher.ENCRYPT_MODE, c2sCipherKey, c2sCipherIV);
      _writeCipherSize = _writeCipher.getIVSize();
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