org.hawkular.wildfly.agent.installer

Class EncoderDecoder

java.lang.Object

org.hawkular.wildfly.agent.installer.EncoderDecoder

public final class EncoderDecoder
extends Object

Provides a simple encoder/decoder. It requires an encryption key to encode and then later decode a string. This is not very strong encryption, but is more than obfuscation since it does require a secret key to both encode and decode.

Method Summary

Modifier and Type	Method and Description
static String	decode(String encodedString, String key, byte[] salt) Decrypts the given encoded string using the given secret key.
static String	encode(String clearText, String key, byte[] salt) Given a secret key, this will encode the given clear text message and return the encoded string.

Methods inherited from class java.lang.Object

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

Method Detail

encode

public static String encode(String clearText,
                            String key,
                            byte[] salt)
                     throws Exception

Given a secret key, this will encode the given clear text message and return the encoded string. In order to decode the string, pass the returned string with the same key and salt to decode(String, String, byte[]).

Parameters:

clearText - the message to encrypt (if null, then null is returned)

key - the secret key used to encrypt the clear text string (must not be null)

salt - random sequence to be used with the key to encrypt the clear text string (must not be null)

Returns:

the encrypted message

Throws:

IllegalArgumentException - if the key and/or salt is null or if the salt is of a wrong size

Exception - on error

decode

public static String decode(String encodedString,
                            String key,
                            byte[] salt)
                     throws Exception

Decrypts the given encoded string using the given secret key. The encoded string must have been encoded via the encode(String, String, byte[]) method with the same key in order for the decode to work.

Parameters:

encodedString - the encoded message (if null, then null is returned)

key - the key that was used to encode the string (must not be null)

salt - random sequence that was used to with the key to encode the string (must not be null)

Returns:

the original, clear text message that was encoded

Throws:

IllegalArgumentException - if the key and/or salt is null or if the salt is of a wrong size

Exception - on error