cn.t.util.security.message.encryption.elgamal

Class ElGamalUtil

java.lang.Object

cn.t.util.security.message.encryption.elgamal.ElGamalUtil

public class ElGamalUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
ElGamalUtil()

Method Summary

Modifier and Type	Method and Description
static PrivateKey	convertEncodedBytesToPrivateKey(byte[] encodedBytes)
static PublicKey	convertEncodedBytesToPublicKey(byte[] encodedBytes)
static Cipher	getCipher() get des cipher

Methods inherited from class java.lang.Object

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

Constructor Detail

ElGamalUtil

public ElGamalUtil()

Method Detail

convertEncodedBytesToPublicKey

public static PublicKey convertEncodedBytesToPublicKey(byte[] encodedBytes)
                                                throws NoSuchAlgorithmException,
                                                       InvalidKeySpecException

Throws:

NoSuchAlgorithmException

InvalidKeySpecException

convertEncodedBytesToPrivateKey

public static PrivateKey convertEncodedBytesToPrivateKey(byte[] encodedBytes)
                                                  throws NoSuchAlgorithmException,
                                                         InvalidKeySpecException

Throws:

NoSuchAlgorithmException

InvalidKeySpecException

getCipher

public static Cipher getCipher()
                        throws NoSuchPaddingException,
                               NoSuchAlgorithmException

get des cipher

Returns:

xxx

Throws:

NoSuchPaddingException - xxx

NoSuchAlgorithmException - xxx