add encrypt

Author: Blankj

README.md

@@ -51,8 +51,10 @@
 	- 切换键盘显示与否状态
 - [正则相关](https://github.com/Blankj/AndroidUtilCode/blob/master/about_regular.md)
 	- 正则工具类
+- [加解密相关](https://github.com/Blankj/AndroidUtilCode/blob/master/about_encrypt.md)
+	- MD5加密
+	- SHA加密
 - [未归类](https://github.com/Blankj/AndroidUtilCode/blob/master/unclassified.md)
 	- 获取服务是否开启
-	- MD5加密
 
 期待你的Star和完善...

about_encrypt.md

@@ -0,0 +1,22 @@
+# 加解密相关
+### MD5加密
+``` java
+/**
+* MD5加密
+*/
+public static String encryptMD5(String data) throws Exception {
+    MessageDigest md5 = MessageDigest.getInstance("MD5");
+    return new BigInteger(md5.digest(data.getBytes())).toString(16);
+}
+```
+
+### SHA加密
+```
+/**
+* SHA加密
+*/
+public static String encryptSHA(String data) throws Exception {
+    MessageDigest sha = MessageDigest.getInstance("SHA");
+    return new BigInteger(sha.digest(data.getBytes())).toString(32);
+}
+```

unclassified.md

@@ -23,41 +23,3 @@ public static boolean isRunningService(String className, Context context) {
     return false;
 }
 ```
-
-### MD5加密
-``` java
-/**
-* MD5加密
-*/
-public static String passwordMD5(String password) {
-    StringBuilder sb = new StringBuilder();
-    try {
-        //1.获取数据摘要器
-        //arg0 : 加密的方式
-        MessageDigest messageDigest = MessageDigest.getInstance("MD5");
-        //2.将一个byte数组进行加密,返回的是一个加密过的byte数组,二进制的哈希计算,md5加密的第一步
-        byte[] digest = messageDigest.digest(password.getBytes());
-        //3.遍历byte数组
-        for (int i = 0; i < digest.length; i++) {
-            //4.MD5加密
-            //byte值    -128-127
-            int result = digest[i] & 0xff;
-            //将得到int类型转化成16进制字符串
-            //String hexString = Integer.toHexString(result)+1;//不规则加密,加盐
-            String hexString = Integer.toHexString(result);
-            if (hexString.length() < 2) {
-                //                    System.out.print("0");
-                sb.append("0");
-            }
-            //System.out.println(hexString);
-            //e10adc3949ba59abbe56e057f20f883e
-            sb.append(hexString);
-        }
-        return sb.toString();
-    } catch (NoSuchAlgorithmException e) {
-        //找不到加密方式的异常
-        e.printStackTrace();
-    }
-    return null;
-}
-```