org.jasypt.iv

Class ByteArrayFixedIvGenerator

java.lang.Object

org.jasypt.iv.ByteArrayFixedIvGenerator

All Implemented Interfaces:

FixedIvGenerator, IvGenerator

public class ByteArrayFixedIvGenerator
extends Object
implements FixedIvGenerator

Byte-array based implementation of FixedIvGenerator, that will always return the same initialization vector (IV).

If the requested IV has a size in bytes smaller than the specified IV, the first n bytes are returned. If it is larger, an exception is thrown.

This class is thread-safe.

Since:

1.9.3

Author:

Hoki Torres

Constructor Summary

Constructors

Constructor and Description
ByteArrayFixedIvGenerator(byte[] iv) Creates a new instance of FixedByteArrayIvGenerator

Method Summary

Modifier and Type	Method and Description
byte[]	generateIv(int lengthBytes) Return iv with the specified byte length.
boolean	includePlainIvInEncryptionResults() As this iv generator provides a fixed iv, its inclusion unencrypted in encryption results is not necessary, and in fact not desirable (so that it remains hidden).

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteArrayFixedIvGenerator

public ByteArrayFixedIvGenerator(byte[] iv)

Creates a new instance of FixedByteArrayIvGenerator

Parameters:

iv - the specified iv.

Method Detail

generateIv

public byte[] generateIv(int lengthBytes)

Return iv with the specified byte length.

Specified by:

generateIv in interface IvGenerator

Parameters:

lengthBytes - length in bytes.

Returns:

the generated iv.

includePlainIvInEncryptionResults

public boolean includePlainIvInEncryptionResults()

As this iv generator provides a fixed iv, its inclusion unencrypted in encryption results is not necessary, and in fact not desirable (so that it remains hidden).

Specified by:

includePlainIvInEncryptionResults in interface IvGenerator

Returns:

false