gov.lanl.TMCryptography
Class IButtonCrypto

java.lang.Object
  |
  +--gov.lanl.TMCryptography.IButtonCrypto

All Implemented Interfaces:

TMKeyCrypto

public class IButtonCrypto

extends java.lang.Object

implements TMKeyCrypto

IButtonCrypto uses iButton hardware to encrypt, decrypt

Version:

05/18/98

Author:

Jim George, Eugene Gavrilov

Field Summary

Fields inherited from interface gov.lanl.TMCryptography.TMKeyCrypto

USE_PRIVATE_KEY, USE_PUBLIC_KEY

Constructor Summary

IButtonCrypto()
Constructor for building from a private key and public certificate

IButtonCrypto(java.lang.String userName)
Constructor for building from a private key and public certificate

Method Summary

byte[]	decrypt(byte[] inmsg, int useWhichKey) Decrypts the input message by striping off whichkey
byte[]	encrypt(byte[] inmsg, int useWhichKey) Encrypts the input message using the specified key
byte[]	getPublicKeyCertificate() returns certificate as byte array

Methods inherited from class java.lang.Object

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

Constructor Detail

IButtonCrypto

public IButtonCrypto()
              throws TMCryptoException

Constructor for building from a private key and public certificate

Throws:

TMCryptoException

IButtonCrypto

public IButtonCrypto(java.lang.String userName)
              throws TMCryptoException

Constructor for building from a private key and public certificate

Parameters:

userName - real name of the user

Throws:

TMCryptoException

Method Detail

getPublicKeyCertificate

public byte[] getPublicKeyCertificate()

returns certificate as byte array

Specified by:

getPublicKeyCertificate in interface TMKeyCrypto

Returns:

public key certificate

encrypt

public byte[] encrypt(byte[] inmsg,
                      int useWhichKey)

Encrypts the input message using the specified key

Specified by:

encrypt in interface TMKeyCrypto

Parameters:

inmsg - the message to encrypt as a byte array

useWhichKey - the specifier as to which key to use

Returns:

the encrypted byte array

decrypt

public byte[] decrypt(byte[] inmsg,
                      int useWhichKey)

Decrypts the input message by striping off whichkey

Specified by:

decrypt in interface TMKeyCrypto

Parameters:

useWhichKey - the specifier as to which key to use

Returns:

the decrypted message as a byte array