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/**
*MessageDigestExample.java
*Copyright 2005-2-16
*/
import java.security.MessageDigest;
/**
*µ¥Ò»µÄÏûÏ¢ÕªÒªËã·¨£¬²»Ê¹ÓÃÃÜÂë.¿ÉÒÔÓÃÀ´¶ÔÃ÷ÎÄÏûÏ¢£¨È磺ÃÜÂ룩Òþ²Ø±£´æ
*/
public class MessageDigestExample{
¡¡public static void main(String[] args) throws
Exception{
¡¡¡¡if(args.length!=1){
¡¡¡¡¡¡System.err.println("Usage:java
MessageDigestExample text");
¡¡¡¡¡¡System.exit(1);
¡¡¡¡}
¡¡¡¡byte[]
plainText=args[0].getBytes("UTF8");
¡¡¡¡//ʹÓÃgetInstance("Ëã·¨")À´»ñµÃÏûÏ¢ÕªÒª,ÕâÀïʹÓÃSHA-1µÄ160λËã·¨
¡¡¡¡MessageDigest
messageDigest=MessageDigest.getInstance("SHA-1");
¡¡¡¡System.out.println("
"+messageDigest.getProvider().getInfo());
¡¡¡¡//¿ªÊ¼Ê¹ÓÃËã·¨
¡¡¡¡messageDigest.update(plainText);
¡¡¡¡System.out.println("
Digest:");
¡¡¡¡//Êä³öËã·¨ÔËËã½á¹û
¡¡¡¡System.out.println(new
String(messageDigest.digest(),"UTF8"));
¡¡}
}
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