com.redhat.rhn.common.security

Class HMAC

java.lang.Object

com.redhat.rhn.common.security.HMAC

public class HMAC
extends java.lang.Object

A class to generate Hashed Message Authentication Codes.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	byteArrayToHex(byte[] a) Convert a byte array to a hex string of the format "1f 30 b7".
static java.lang.String	md5(java.lang.String text, java.lang.String key) Generate an HMAC hash for the given text and key using MD5 as the hash function.
static java.lang.String	sha1(java.lang.String text, java.lang.String key) Generate an HMAC hash for the given text and key using SHA1 as the hash function.

Methods inherited from class java.lang.Object

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

Method Detail

byteArrayToHex

public static java.lang.String byteArrayToHex(byte[] a)

Convert a byte array to a hex string of the format "1f 30 b7". package protected so that SessionSwap can use it.

Parameters:

a - The byte array to convert

Returns:

the resulting hex string

sha1

public static java.lang.String sha1(java.lang.String text,
                                    java.lang.String key)

Generate an HMAC hash for the given text and key using SHA1 as the hash function.

Parameters:

text - The text to hash

key - The key to use when generating the hash.

Returns:

The resulting hash string

md5

public static java.lang.String md5(java.lang.String text,
                                   java.lang.String key)

Generate an HMAC hash for the given text and key using MD5 as the hash function.

Parameters:

text - The text to hash

key - The key to use when generating the hash.

Returns:

The resulting hash string TODO: Make this use the JDK MD5 algorithm as above vs the custom one below.