com.ibm.crypto.fips.provider

Class AESKeySpec

java.lang.Object

com.ibm.crypto.fips.provider.AESKeySpec

All Implemented Interfaces:

java.security.spec.KeySpec

public final class AESKeySpec
extends java.lang.Object
implements java.security.spec.KeySpec

This class specifies a AES key.

Constructor Summary

Constructors

Constructor and Description
AESKeySpec(byte[] key) Uses the bytes in key as the key material for the AES key.
AESKeySpec(byte[] key, int offset, int len) Uses the bytes in key, beginning at offset inclusive, as the key material for the AES key.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getKey() Returns the AES key material.
protected byte[]	internalGetKey()

Methods inherited from class java.lang.Object

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

Constructor Detail

AESKeySpec

public AESKeySpec(byte[] key)
           throws java.security.InvalidKeyException

Uses the bytes in key as the key material for the AES key.

The bytes that constitute the AES key are those between key[0] and key[key.length - 1] inclusive.

Parameters:

key - the buffer with the AES key material.

Throws:

java.security.InvalidKeyException - if the given key material is not 16, 24, or 32 bytes.

AESKeySpec

public AESKeySpec(byte[] key,
          int offset,
          int len)
           throws java.security.InvalidKeyException

Uses the bytes in key, beginning at offset inclusive, as the key material for the AES key.

The bytes that constitute the AES key are those between key[offset] and key[offset+len-1] inclusive.

Parameters:

key - the buffer with the AES key material.

offset - the offset in key, where the DES key material starts.

Throws:

java.security.InvalidKeyException - if the given key material, starting at offset inclusive, is not 16, 24, or 32 bytes.

Method Detail

getKey

public byte[] getKey()

Returns the AES key material.

Returns:

the AES key material.

Throws:

FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.

internalGetKey

protected byte[] internalGetKey()