com.entrust.toolkit.capi

Class CapiUtils

java.lang.Object

com.entrust.toolkit.capi.CapiUtils

public class CapiUtils
extends java.lang.Object

Contains various utility API related to Microsoft CryptoAPI.

Since:

8.0

Method Summary

Modifier and Type	Method and Description
static void	encodeBigInteger(byte[] output, int offset, int size, java.math.BigInteger value) Encodes a Java BigInteger value to MSCAPI big integer representation.
static void	encodeBigInteger(byte[] output, int offset, int size, java.math.BigInteger value, boolean littleEndian) Encodes a Java BigInteger value to either little endian or big endian MSCAPI big integer representation.
static byte[]	reverseArray(byte[] ba) Reverses the order of the bytes in a byte array.

Methods inherited from class java.lang.Object

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

Method Detail

reverseArray

public static byte[] reverseArray(byte[] ba)

Reverses the order of the bytes in a byte array.

Parameters:

ba - a byte array

Returns:

a reference to the byte array that was passed in

encodeBigInteger

public static void encodeBigInteger(byte[] output,
                                    int offset,
                                    int size,
                                    java.math.BigInteger value)

Encodes a Java BigInteger value to MSCAPI big integer representation.

In MSCAPI, big integer values are usually represented as a fixed length set of bytes with little endian byte order, however, sometimes big endian byte order is used.

Parameters:

output - the output buffer for the result

offset - the offset in output where the result is stored

size - the size of the result; output will be padded with leading zeros as necessary

value - the big integer value in Java BigInteger representation

encodeBigInteger

public static void encodeBigInteger(byte[] output,
                                    int offset,
                                    int size,
                                    java.math.BigInteger value,
                                    boolean littleEndian)

Encodes a Java BigInteger value to either little endian or big endian MSCAPI big integer representation.

In MSCAPI, big integer values are usually represented as a fixed length set of bytes with little endian byte order, however, sometimes big endian byte order is used.

Parameters:

output - the output buffer for the result

offset - the offset in output where the result is stored

size - the size of the result; output will be padded with leading zeros as necessary

value - the big integer value in Java BigInteger representation

Since:

8.0 patch