gnu.crypto.util
Class Base64

java.lang.Object
  |
  +--gnu.crypto.util.Base64

public class Base64

extends java.lang.Object

Most of this implementation is from Robert Harder's public domain Base64 code (version 1.4.1 available from <http://iharder.net/xmlizable>).

Method Summary

static byte[]	decode(byte[] src, int off, int len) Decodes Base64 content in byte array format and returns the decoded byte array.
static byte[]	decode(java.lang.String s) Decodes data from Base64 notation.
static java.lang.String	encode(byte[] src) Encodes a byte array into Base64 notation.
static java.lang.String	encode(byte[] src, int off, int len, boolean breakLines) Encodes a byte array into Base64 notation.

Methods inherited from class java.lang.Object

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

Method Detail

encode

public static final java.lang.String encode(byte[] src)

Encodes a byte array into Base64 notation. Equivalent to calling encode(source, 0, source.length).

Parameters:

src - the data to convert.

encode

public static final java.lang.String encode(byte[] src,
                                            int off,
                                            int len,
                                            boolean breakLines)

Encodes a byte array into Base64 notation.

Parameters:

src - the data to convert.

off - offset in array where conversion should begin.

len - length of data to convert.

breakLines - break lines at 80 characters or less.

decode

public static final byte[] decode(java.lang.String s)
                           throws java.io.UnsupportedEncodingException

Decodes data from Base64 notation.

Parameters:

s - the string to decode.

Returns:

the decoded data.

java.io.UnsupportedEncodingException

decode

public static byte[] decode(byte[] src,
                            int off,
                            int len)

Decodes Base64 content in byte array format and returns the decoded byte array.

Parameters:

src - the Base64 encoded data.

off - the offset of where to begin decoding.

len - the length of characters to decode.

Returns:

the decoded data.

Throws:

java.lang.IllegalArgumentException - if src contains an illegal Base-64 character.