Package com.vividsolutions.jump.util

Class SimpleStringEncrypter

java.lang.Object

com.vividsolutions.jump.util.SimpleStringEncrypter

public class SimpleStringEncrypter
extends Object

Provides a simple encyrption/decryption mechanism for ASCII string values. The algorithm does not provide strong encryption, but serves as a way of obfuscating the value of short strings (such as passwords). The code symbol set is drawn from the set of printable ASCII symbols. The encrypted strings are longer than the clear text (roughly double in length). A random element is used, so that different encryptions of the same clear text will result in different encodings.

Constructor Summary

Constructors

Constructor	Description
SimpleStringEncrypter()	Creates a new encrypter

Method Summary

Modifier and Type	Method	Description
String	decrypt(String codeText)	Decrypts a code string.
String	encrypt(String clearText)	Encrypts a string.
void	setEncryptedSymbol(char c, char[] code, int i)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleStringEncrypter

public SimpleStringEncrypter()

Creates a new encrypter

Method Detail

encrypt

public String encrypt(String clearText)

Encrypts a string.

Parameters:

clearText - the string to encrypt

Returns:

the encryted code

setEncryptedSymbol

public void setEncryptedSymbol(char c,
                               char[] code,
                               int i)

decrypt

public String decrypt(String codeText)

Decrypts a code string.

Parameters:

codeText - the code to decrypt

Returns:

the clear text for the code

Throws:

IllegalArgumentException - if the code string is invalid