实例1:
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package cn.std.util;
import java.nio.charset.Charset;
public class DeEnCode {
private static final String key0 = "FECOI()*&<MNCXZPKL" ;
private static final Charset charset = Charset.forName( "UTF-8" );
private static byte [] keyBytes = key0.getBytes(charset);
public static String encode(String enc){
byte [] b = enc.getBytes(charset);
for ( int i= 0 ,size=b.length;i<size;i++){
for ( byte keyBytes0:keyBytes){
b[i] = ( byte ) (b[i]^keyBytes0);
}
}
return new String(b);
}
public static String decode(String dec){
byte [] e = dec.getBytes(charset);
byte [] dee = e;
for ( int i= 0 ,size=e.length;i<size;i++){
for ( byte keyBytes0:keyBytes){
e[i] = ( byte ) (dee[i]^keyBytes0);
}
}
return new String(e);
}
public static void main(String[] args) {
String s= "you are right" ;
String enc = encode(s);
String dec = decode(enc);
System.out.println(enc);
System.out.println(dec);
}
}
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实例2
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public static String setEncrypt(String str){
String sn= "ziyu" ;
//密钥
int [] snNum= new int [str.length()];
String result= "" ;
String temp= "" ;
for ( int i= 0 ,j= 0 ;i<str.length();i++,j++){
if (j==sn.length())
j= 0 ;
snNum[i]=str.charAt(i)^sn.charAt(j);
}
for ( int k= 0 ;k<str.length();k++){
if (snNum[k]< 10 ){
temp= "00" +snNum[k];
} else {
if (snNum[k]< 100 ){
temp= "0" +snNum[k];
}
}
result+=temp;
}
return result;
}
public static String getEncrypt(String str){
String sn= "ziyu" ;
//密钥
char [] snNum= new char [str.length()/ 3 ];
String result= "" ;
for ( int i= 0 ,j= 0 ;i<str.length()/ 3 ;i++,j++){
if (j==sn.length())
j= 0 ;
int n=Integer.parseint(str.substring(i* 3 ,i* 3 + 3 ));
snNum[i]=( char )(( char )n^sn.charAt(j));
}
for ( int k= 0 ;k<str.length()/ 3 ;k++){
result+=snNum[k];
}
return result;
}
}
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总结
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原文链接:http://blog.csdn.net/a1049107922/article/details/52413693