Examples of freenet.crypt.BlockCipher.encipher()

freenet.crypt.BlockCipher.encipher()
Enciphers the contents of block where block must be equal to getBlockSize()/8. The result is placed in result and, too has to have length getBlockSize()/8. Block and result may refer to the same array. Warning: It is not a guarantee that block will not be over- written in the course of the algorithm

    IV[IV.length - 4] = (byte) (sequenceNumber >>> 24);
    IV[IV.length - 3] = (byte) (sequenceNumber >>> 16);
    IV[IV.length - 2] = (byte) (sequenceNumber >>> 8);
    IV[IV.length - 1] = (byte) (sequenceNumber);


    ivCipher.encipher(IV, IV);


    byte[] payload = Arrays.copyOfRange(buf, offset + hmacLength, offset + length);
    byte[] hash = Arrays.copyOfRange(buf, offset, offset + hmacLength);


    if(!HMAC.verifyWithSHA256(sessionKey.hmacKey, payload, hash)) return null;

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    BlockCipher ivCipher = sessionKey.ivCipher;


    byte[] IV = new byte[ivCipher.getBlockSize() / 8];
    System.arraycopy(sessionKey.ivNonce, 0, IV, 0, IV.length);
    System.arraycopy(seqNumBytes, 0, IV, IV.length - seqNumBytes.length, seqNumBytes.length);
    ivCipher.encipher(IV, IV);


    PCFBMode cipher = PCFBMode.create(sessionKey.incommingCipher, IV);
    cipher.blockEncipher(seqNumBytes, 0, seqNumBytes.length);


    return seqNumBytes;

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    byte[] IV = new byte[ivCipher.getBlockSize() / 8];
    System.arraycopy(sessionKey.ivNonce, 0, IV, 0, IV.length);
    System.arraycopy(data, hmacLength, IV, IV.length - 4, 4);


    ivCipher.encipher(IV, IV);


    PCFBMode payloadCipher = PCFBMode.create(sessionKey.outgoingCipher, IV);
    payloadCipher.blockEncipher(data, hmacLength, paddedLen - hmacLength);


    //Add hash

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        } catch (UnsupportedCipherException e) {
          throw new Error("Impossible: no Rijndael(256,128): "+e, e);
        }
        cipher.initialize(masterKey);
        diskSalt = new byte[0x10];
        cipher.encipher(newsalt, diskSalt);
        if(logDEBUG)
          Logger.debug(this, "Encrypting with "+HexUtil.bytesToHex(newsalt)+" from "+HexUtil.bytesToHex(diskSalt));
      }
      cipherManager = new CipherManager(newsalt, diskSalt);

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