Package org.forgerock.json.jose.utils

Class BigIntegerUtils

java.lang.Object

org.forgerock.json.jose.utils.BigIntegerUtils

public final class BigIntegerUtils
extends Object

Utils to complement bit operations not covered by the BigInteger functions.

Method Summary

Modifier and Type	Method	Description
static BigInteger	base64UrlDecode(String magnitudeBase64UrlEncoded)	Decode a big-endian base64 url encoding of a magnitude big integer and transform it as a positive big integer.
static byte[]	toBytesUnsigned(BigInteger x)	Returns the magnitude big-endian byte array of a big integer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

toBytesUnsigned

public static byte[] toBytesUnsigned(BigInteger x)

Returns the magnitude big-endian byte array of a big integer.

Parameters:

x - a big integer

Returns:

the magnitude big-endian byte array of x

base64UrlDecode

public static BigInteger base64UrlDecode(String magnitudeBase64UrlEncoded)

Decode a big-endian base64 url encoding of a magnitude big integer and transform it as a positive big integer.

Parameters:

magnitudeBase64UrlEncoded - big-endian base64 url encoding of a big integer magnitude

Returns:

a positive big integer with the magnitude decoded from thhe