Components
Class Crypt

java.lang.Object
  Components.Crypt

public class Crypt
extends java.lang.Object

Cryptographic component

Field Summary

private de.tubs.cs.iti.krypto.chiffre.Cipher

c Cipher to use

Constructor Summary

Crypt(java.lang.String cName)
Default constructor

Method Summary

void	breakCipher(java.lang.String cleartxt, java.lang.String ciphertxt, java.lang.String key, int mod) Break the encryption of an encrypted file
void	createKey(java.lang.String file) Generates a new key (interactive command)
void	decrypt(java.lang.String cleartxt, java.lang.String ciphertxt, java.lang.String key) Decrypt a file
void	encrypt(java.lang.String cleartxt, java.lang.String ciphertxt, java.lang.String key) Encrypt a file

Methods inherited from class java.lang.Object

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

Field Detail

c

private de.tubs.cs.iti.krypto.chiffre.Cipher c

Cipher to use

Constructor Detail

Crypt

public Crypt(java.lang.String cName)
      throws java.lang.ClassNotFoundException,
             java.lang.InstantiationException,
             java.lang.IllegalAccessException

Default constructor

Throws:

java.lang.ClassNotFoundException

java.lang.InstantiationException

java.lang.IllegalAccessException

Method Detail

createKey

public void createKey(java.lang.String file)
               throws java.io.IOException

Generates a new key (interactive command)

Parameters:

file - Key file

Throws:

java.io.IOException

encrypt

public void encrypt(java.lang.String cleartxt,
                    java.lang.String ciphertxt,
                    java.lang.String key)
             throws java.io.IOException

Encrypt a file

Parameters:

cleartxt - Cleartext file

ciphertxt - Ciphertext file

key - Key file

Throws:

java.io.IOException

decrypt

public void decrypt(java.lang.String cleartxt,
                    java.lang.String ciphertxt,
                    java.lang.String key)
             throws java.io.IOException

Decrypt a file

Parameters:

cleartxt - Cleartext file

ciphertxt - Ciphertext file

key - Key file

Throws:

java.io.IOException

breakCipher

public void breakCipher(java.lang.String cleartxt,
                        java.lang.String ciphertxt,
                        java.lang.String key,
                        int mod)
                 throws java.io.IOException

Break the encryption of an encrypted file

Parameters:

cleartxt - Cleartext file

ciphertxt - Ciphertext file

key - Key file

mod - Modulus

Throws:

java.io.IOException