SHA_1计算消息摘要

 1 /**
 2      * SHA_1计算消息摘要
 3      * @param bytes 待计算数据
 4      * @return
 5      */
 6     public static String SHA_1(byte[] bytes) {
 7         String encodeBase64String = null;
 8         try {
 9             MessageDigest md = MessageDigest.getInstance("SHA1");
10             md.update(bytes);
11             byte[] _bytes = md.digest();
12             encodeBase64String = Base64.encodeBase64String(_bytes);
13         } catch (NoSuchAlgorithmException ex) {
14             ex.printStackTrace();
15         }
16         return encodeBase64String;
17     }