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); } } |
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; } } |
总结
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原文链接:http://blog.csdn.net/a1049107922/article/details/52413693