com.yubico.base

Class Modhex

java.lang.Object

com.yubico.base.Modhex

public class Modhex
extends Object

Utility methods to encode a byte array to Modhex String and to decode a Modhex String to a the byte array it represents.

Modehex encoding uses the alphabet cbdefghijklnrtuv which has the property of being at the same position on all keyboards.

Author:

Simon

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALPHABET The Modhex alphabet: the letters used to decode bytes in.
private static char[]	trans

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Modhex()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	decode(String s) Decodes.
static String	encode(byte[] data) Encodes.

Methods inherited from class java.lang.Object

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

Field Detail

ALPHABET

public static final String ALPHABET

The Modhex alphabet: the letters used to decode bytes in.

See Also:

Constant Field Values

trans

private static char[] trans

Constructor Detail

Modhex

private Modhex()

Method Detail

encode

public static String encode(byte[] data)

Encodes.

Parameters:

data - Data to encode.

Returns:

Modhex.

decode

public static byte[] decode(String s)

Decodes.

Parameters:

s - Modhex encoded String. Decoding ignores case of s.

Returns:

Bytes s represents.

Throws:

IllegalArgumentException - If s not valid Modhex.