Examples of java.math.BigInteger.toByteArray()

java.math.BigInteger.toByteArray()
Returns a byte array containing the two's-complement representation of this BigInteger. The byte array will be in big-endian byte-order: the most significant byte is in the zeroth element. The array will contain the minimum number of bytes required to represent this BigInteger, including at least one sign bit, which is {@code (ceil((this.bitLength() +1)/8))}. (This representation is compatible with the {@link #BigInteger(byte[]) (byte[])} constructor.) @return a byte array containing the two's-complement representation ofthis BigInteger. @see #BigInteger(byte[])

                        writeVarLong(b.longValue());
                    }
                } else {
                    writeByte((byte) type);
                    writeVarInt(scale);
                    byte[] bytes = b.toByteArray();
                    writeVarInt(bytes.length);
                    write(bytes, 0, bytes.length);
                }
            }
            break;

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                if (scale == 0) {
                    return 1 + getVarLongLen(b.longValue());
                }
                return 1 + getVarIntLen(scale) + getVarLongLen(b.longValue());
            }
            byte[] bytes = b.toByteArray();
            return 1 + getVarIntLen(scale) + getVarIntLen(bytes.length) + bytes.length;
        }
        case Value.TIME:
            if (SysProperties.STORE_LOCAL_TIME) {
                long nanos = ((ValueTime) v).getNanos();

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    byte [][] result = new byte[num+2][];
    result[0] = a;


    for (int i = 1; i <= num; i++) {
      BigInteger curBI = startBI.add(intervalBI.multiply(BigInteger.valueOf(i)));
      byte [] padded = curBI.toByteArray();
      if (padded[1] == 0)
        padded = tail(padded,padded.length-2);
      else
        padded = tail(padded,padded.length-1);
      result[i] = padded;

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    {
      byte[] kbytes = "jaas is the way".getBytes();
      SecretKeySpec key = new SecretKeySpec(kbytes, "Blowfish");
  
      BigInteger n = new BigInteger(secret, 16);
      byte[] encoding = n.toByteArray();
      
      Cipher cipher = Cipher.getInstance("Blowfish");
      cipher.init(Cipher.DECRYPT_MODE, key);
      byte[] decode = cipher.doFinal(encoding);
      return new String(decode);

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      BigInteger r = new BigInteger(1, HexDump.hexStringToByteArray(rStr));
      BigInteger s = new BigInteger(1, HexDump.hexStringToByteArray(sStr));


      System.out.println("r: " + HexDump.byteArrayToHexString(r.toByteArray()));
      System.out.println(r.toString());
      System.out.println("s: " + HexDump.byteArrayToHexString(s.toByteArray()));
      System.out.println(s.toString());
      System.out.println(Base64.encode(convertBIGINTtoXMLDSIG(r, s)));
      System.out.println(Base64.encode(convertBIGINTtoASN1(r, s)));
   }

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        i++;
        if (i == 0) return a;
        if (i == num + 1) return b;


        BigInteger curBI = startBI.add(intervalBI.multiply(BigInteger.valueOf(i)));
        byte [] padded = curBI.toByteArray();
        if (padded[1] == 0)
          padded = tail(padded, padded.length - 2);
        else
          padded = tail(padded, padded.length - 1);
        return padded;

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        i++;
        if (i == 0) return a;
        if (i == num + 1) return b;
        
        BigInteger curBI = startBI.add(intervalBI.multiply(BigInteger.valueOf(i)));
        byte [] padded = curBI.toByteArray();
        if (padded[1] == 0)
          padded = tail(padded, padded.length - 2);
        else
          padded = tail(padded, padded.length - 1);
        return padded;

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    result[0] = a;


    for (int i = 1; i <= num; i++) {
      BigInteger curBI = startBI
          .add(intervalBI.multiply(BigInteger.valueOf(i)));
      byte[] padded = curBI.toByteArray();
      if (padded[1] == 0)
        padded = tail(padded, padded.length - 2);
      else
        padded = tail(padded, padded.length - 1);
      result[i] = padded;

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        i++;
        if (i == 0) return a;
        if (i == num + 1) return b;
        
        BigInteger curBI = startBI.add(intervalBI.multiply(BigInteger.valueOf(i)));
        byte [] padded = curBI.toByteArray();
        if (padded[1] == 0)
          padded = tail(padded, padded.length - 2);
        else
          padded = tail(padded, padded.length - 1);
        return padded;

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            sum = sum.multiply(BigInteger.valueOf(3));
            sum = sum.add(BigInteger.valueOf(intArray[i] + 1));
        }


        int size = (BigInteger.valueOf(3).pow(intArray.length).bitLength() + 7) / 8;
        byte[] arr = sum.toByteArray();


        if (arr.length < size)
        {
            // pad with leading zeros so arr.length==size
            byte[] arr2 = new byte[size];

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