anon.client.crypto

Class SymCipherCTR

java.lang.Object

anon.client.crypto.SymCipherCTR

All Implemented Interfaces:

ISymCipher

public final class SymCipherCTR
extends java.lang.Object
implements ISymCipher

Constructor Summary

Constructors

Constructor and Description
SymCipherCTR()

Method Summary

Modifier and Type	Method and Description
int	encryptAES1(byte[] from, int ifrom, byte[] to, int ito, int len)
int	encryptAES2(byte[] buff)
byte[]	getKeys() Returns the currently used key(s) for encryption.
static void	main(java.lang.String[] argv)
int	setEncryptionKeyAES(byte[] key) Sets the AES encryption key to the value in the key buffer.
int	setEncryptionKeyAES(byte[] key, int offset, int len)
int	setEncryptionKeysAES(byte[] keys) Set both keys to different value, if keys.length==2* KEY_SIZe, else set both keys to the same value
void	setIV2(byte[] buff)
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SymCipherCTR

public SymCipherCTR()

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

setEncryptionKeyAES

public int setEncryptionKeyAES(byte[] key)

Description copied from interface: ISymCipher

Sets the AES encryption key to the value in the key buffer. Required length and error handling is implementation specific.

Specified by:

setEncryptionKeyAES in interface ISymCipher

Returns:

0 if successful, -1 if an error occurred

setEncryptionKeyAES

public int setEncryptionKeyAES(byte[] key,
                               int offset,
                               int len)

Specified by:

setEncryptionKeyAES in interface ISymCipher

Parameters:

key - byte[]

offset - int

len - int if len==16 --> only the key is set; if len==32 --> key and IV is set

Returns:

int

setEncryptionKeysAES

public int setEncryptionKeysAES(byte[] keys)

Set both keys to different value, if keys.length==2* KEY_SIZe, else set both keys to the same value

Specified by:

setEncryptionKeysAES in interface ISymCipher

Parameters:

keys - byte[]

Returns:

int

getKeys

public byte[] getKeys()

Returns the currently used key(s) for encryption. If both keys are set, than an array of 32 byte is returned, otherwise an array of 16 bytes

Specified by:

getKeys in interface ISymCipher

Returns:

The current key(s) used for encryption or null, if no key is set.

setIV2

public void setIV2(byte[] buff)

Specified by:

setIV2 in interface ISymCipher

encryptAES1

public int encryptAES1(byte[] from,
                       int ifrom,
                       byte[] to,
                       int ito,
                       int len)

Specified by:

encryptAES1 in interface ISymCipher

encryptAES2

public int encryptAES2(byte[] buff)

Specified by:

encryptAES2 in interface ISymCipher

main

public static void main(java.lang.String[] argv)