com.googlecode.jinahya.crypto

Class Ciphers

java.lang.Object

com.googlecode.jinahya.crypto.Ciphers

public class Ciphers
extends Object

A utility class for Ciphers.

Author:

Jin Kwon

Field Summary

Fields

Modifier and Type	Field and Description
static Map<String,List<Integer>>	SUPPORTED_TRANSFORMATIONS A map of supported transformations and the list of keysizes.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Ciphers() Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
static void	doFinal(Cipher cipher, InputStream input, OutputStream output, byte[] inbuf) Encrypts or decrypts all bytes from input and writes output to output.
static void	doFinal(Cipher cipher, ReadableByteChannel input, WritableByteChannel output, ByteBuffer inbuf) Encrypts or decrypts all bytes from input and writes result to output.

Methods inherited from class java.lang.Object

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

Field Detail

SUPPORTED_TRANSFORMATIONS

public static final Map<String,List<Integer>> SUPPORTED_TRANSFORMATIONS

A map of supported transformations and the list of keysizes.

See Also:

Cipher, Java Cryptography Architecture Standard Algorithm Name Documentation"

Constructor Detail

Ciphers

protected Ciphers()

Creates a new instance.

Method Detail

doFinal

public static void doFinal(Cipher cipher,
           InputStream input,
           OutputStream output,
           byte[] inbuf)
                    throws IOException,
                           IllegalBlockSizeException,
                           BadPaddingException

Encrypts or decrypts all bytes from input and writes output to output.

Parameters:

cipher - the cipher

input - input

output - output

inbuf - the buffer

Throws:

IOException - if an I/O error occurs.

IllegalBlockSizeException

BadPaddingException

doFinal

public static void doFinal(Cipher cipher,
           ReadableByteChannel input,
           WritableByteChannel output,
           ByteBuffer inbuf)
                    throws IOException,
                           IllegalBlockSizeException,
                           BadPaddingException

Encrypts or decrypts all bytes from input and writes result to output.

Parameters:

cipher - the cipher

input - input

output - output

inbuf - input buffer

Throws:

IOException - if an I/O error occurs.

IllegalBlockSizeException

BadPaddingException