Java字符串加密处理

[java]
/**
* 2010-04-08
* 为字符串加密
* author: 001
*
*/
public class PwdDigest {

    /**
     * @param myinfo
     * 为字符串加密
     * @return
     */
    public static String passwordDigest(String myinfo) {
        String newPwd = "";
        try {
            java.security.MessageDigest alga=java.security.MessageDigest.getInstance("MD5");
//          java.security.MessageDigest alga = java.security.MessageDigest.getInstance("SHA-1");
            alga.update(myinfo.getBytes());
            byte[] digesta = alga.digest();
            newPwd = byte2hex(digesta);
        } catch (java.security.NoSuchAlgorithmException e) {
            System.out.println("密码加密异常：非法摘要算法"+e);
            Loggers.error("密码加密异常：非法摘要算法"+e);
        }
        return newPwd;

    }

    public static String byte2hex(byte[] b) // 二行制转字符串
    {
        String hs = "";
        String stmp = "";
        for (int n = 0; n < b.length; n++) {
            stmp = (java.lang.Integer.toHexString(b[n] & 0XFF));
            if (stmp.length() == 1){
                hs = hs + "0" + stmp;
            }else{
                hs = hs + stmp;
            }
        }
        return hs.toUpperCase();
    }
}

摘自那年那月那天

补充：综合编程 , 安全编程 ,