eve.security

Class Security

java.lang.Object

eve.security.Security

public class Security
extends Object

A utility class for providing static methods.

Author:

Mike

Method Summary

Modifier and Type	Method and Description
static boolean	bytesAreEqual(byte[] one, int oneOffset, int oneLength, byte[] two, int twoOffset, int twoLength)
static void	decryptAndDesalt(byte[] src, int offset, int length, EncryptionKey key, ByteArray dest)
static void	getRandom(byte[] dest, int offset, int length)
static IBlockInput	makeSecureBlockInput(IBlockInput inp, ISecureChannel ch)
static IBlockOutput	makeSecureBlockOutput(IBlockOutput out, ISecureChannel ch)
static void	saltAndEncrypt(byte[] src, int offset, int length, EncryptionKey key, int saltLength, ByteArray dest, int maxChunksize) Encrypt a salted version of the source data, and break up the data if it is too big for the EncryptionKey.

Methods inherited from class java.lang.Object

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

Method Detail

getRandom

public static void getRandom(byte[] dest,
                             int offset,
                             int length)

bytesAreEqual

public static boolean bytesAreEqual(byte[] one,
                                    int oneOffset,
                                    int oneLength,
                                    byte[] two,
                                    int twoOffset,
                                    int twoLength)

saltAndEncrypt

public static void saltAndEncrypt(byte[] src,
                                  int offset,
                                  int length,
                                  EncryptionKey key,
                                  int saltLength,
                                  ByteArray dest,
                                  int maxChunksize)
                           throws IOException

Encrypt a salted version of the source data, and break up the data if it is too big for the EncryptionKey.

Parameters:

src - the data to encrypt.

offset - the start of the data.

length - the number of bytes of data.

key - the EncryptionKey

saltLength - the number of bytes to salt with. If this is a negative value then a random value between 0 and -saltLength is chosen.

dest - the destination ByteArray to place the encrytped data.

Throws:

IOException

decryptAndDesalt

public static void decryptAndDesalt(byte[] src,
                                    int offset,
                                    int length,
                                    EncryptionKey key,
                                    ByteArray dest)
                             throws IOException

Throws:

IOException

makeSecureBlockOutput

public static IBlockOutput makeSecureBlockOutput(IBlockOutput out,
                                                 ISecureChannel ch)

makeSecureBlockInput

public static IBlockInput makeSecureBlockInput(IBlockInput inp,
                                               ISecureChannel ch)