Android SHA加密实现

同前篇博文的MD5加密
只要把加密文本转换为String就好了
package com.tencent.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* 对外提供getSHA(String str)方法
* @author randyjia
*
*/
public class SHA {
public static String getSHA(String val) throws NoSuchAlgorithmException{
MessageDigest md5 = MessageDigest.getInstance("SHA-1");
md5.update(val.getBytes());
byte[] m = md5.digest();//加密
return getString(m);
}

private static String getString(byte[] b){
StringBuffer sb = new StringBuffer();
for(int i = 0; i < b.length; i ++){
sb.append(b[i]);
}
return sb.toString();
}
}