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[])

                s += 8;


                BigDecimal bigdecimal = (BigDecimal) o;
                BigInteger bigint     = JavaSystem.unscaledValue(bigdecimal);


                s += bigint.toByteArray().length;
                break;


            case Types.SQL_BOOLEAN :
                s += 1;
                break;

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   * @return public key
   */
  protected static byte[] getPublicKey(KeyPair keyPair) {
     DHPublicKey incomingPublicKey = (DHPublicKey) keyPair.getPublic();
     BigInteger  dhY = incomingPublicKey.getY();
     byte[] result = dhY.toByteArray();
     byte[] temp = new byte[KEY_LENGTH];
     if (result.length < KEY_LENGTH) {
       System.arraycopy(result, 0, temp, KEY_LENGTH - result.length, result.length);
       result = temp;
     } else if(result.length > KEY_LENGTH){

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            idArray = new COSArray();
            try
            {
                MessageDigest md = MessageDigest.getInstance( "MD5" );
                BigInteger time = BigInteger.valueOf( System.currentTimeMillis() );
                md.update( time.toByteArray() );
                md.update( ownerPassword.getBytes() );
                md.update( userPassword.getBytes() );
                md.update( document.getDocument().toString().getBytes() );
                byte[] id = md.digest( this.toString().getBytes() );
                COSString idString = new COSString();

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            idArray = new COSArray();
            try
            {
                MessageDigest md = MessageDigest.getInstance( "MD5" );
                BigInteger time = BigInteger.valueOf( System.currentTimeMillis() );
                md.update( time.toByteArray() );
                md.update( ownerPassword.getBytes() );
                md.update( userPassword.getBytes() );
                md.update( document.toString().getBytes() );
                byte[] id = md.digest( this.toString().getBytes() );
                COSString idString = new COSString();

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        output.write(bignum.value.signum() >= 0 ? '+' : '-');
        
        BigInteger absValue = bignum.value.abs();
        
        byte[] digits = absValue.toByteArray();
        
        boolean oddLengthNonzeroStart = (digits.length % 2 != 0 && digits[0] != 0);
        int shortLength = digits.length / 2;
        if (oddLengthNonzeroStart) {
            shortLength++;

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                    BigInteger bigInt = new BigInteger(stringVal);
                    
                    // we don't deal with negatives.
                    if (bigInt.compareTo(BigInteger.ZERO) >= 0) {
                        int bitLength = bigInt.toString(2).length();
                        byte[] bytes = bigInt.toByteArray();
                        
                        byte[] buf = new byte[(bitLength / 7) + ((bitLength % 7) > 0 ? 1 : 0)];


                        int b = 0;
                        int destBit = 0;

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        if (sign || base == 10 || val.signum() >= 0) {
            return stringToBytes(val.toString(base),upper);
        }


        // negative values
        byte[] bytes = val.toByteArray();
        switch(base) {
        case 2:  return Convert.twosComplementToBinaryBytes(bytes);
        case 8:  return Convert.twosComplementToOctalBytes(bytes);
        case 16: return Convert.twosComplementToHexBytes(bytes,upper);
        default: return stringToBytes(val.toString(base),upper);

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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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                if (log.isDebugEnabled()) {
                    log.debug("BigInteger 16 encoding on output ");
                }


                BigInteger n = new BigInteger(IOUtils.toString(inputStream), 16);
                decodedInputStream = new ByteArrayInputStream(n.toByteArray());
                break;
            default:
                throw new IllegalArgumentException("Unsupported encoding type");
        }

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            imageID = (BigInteger)((PlanarImage)owner).getImageID();
        else if (owner instanceof SerializableRenderedImage)
            imageID = (BigInteger)((SerializableRenderedImage)owner).getImageID();


        if (imageID != null) {
            byte[] buf = imageID.toByteArray();
            int length = buf.length;
            byte[] buf1 = new byte[length + 8];
            System.arraycopy(buf, 0, buf1, 0, length);
            for (int i = 7, j = 0; i >= 0; i--, j += 8)
                buf1[length++] = (byte)(idx >> j);

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