Package org.xbill.DNS.utils

Class base32

java.lang.Object

org.xbill.DNS.utils.base32

public class base32
extends Object

Routines for converting between Strings of base32-encoded data and arrays of binary data. This currently supports the base32 and base32hex alphabets specified in RFC 4648, sections 6 and 7.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	base32.Alphabet

Field Summary

Fields

Modifier and Type	Field	Description
private final String	alphabet
private final boolean	lowercase
private final boolean	padding

Constructor Summary

Constructors

Constructor	Description
base32(String alphabet, boolean padding, boolean lowercase)	Creates an object that can be used to do base32 conversions.

Method Summary

Modifier and Type	Method	Description
private static int	blockLenToPadding(int blocklen)
byte[]	fromString(String str)	Convert a base32-encoded String to binary data
private static int	paddingToBlockLen(int padlen)
String	toString(byte[] b)	Convert binary data to a base32-encoded String

Methods inherited from class java.lang.Object

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

Field Details

alphabet

private final String alphabet

padding

private final boolean padding

lowercase

private final boolean lowercase

Constructor Details

base32

public base32(String alphabet,
 boolean padding,
 boolean lowercase)

Creates an object that can be used to do base32 conversions.

Parameters:

alphabet - Which alphabet should be used

padding - Whether padding should be used

lowercase - Whether lowercase characters should be used. default parameters (The standard base32 alphabet, no padding, uppercase)

Method Details

blockLenToPadding

private static int blockLenToPadding(int blocklen)

paddingToBlockLen

private static int paddingToBlockLen(int padlen)

toString

public String toString(byte[] b)

Convert binary data to a base32-encoded String

Parameters:

b - An array containing binary data

Returns:

A String containing the encoded data

fromString

public byte[] fromString(String str)

Convert a base32-encoded String to binary data

Parameters:

str - A String containing the encoded data

Returns:

An array containing the binary data, or null if the string is invalid