HMAC-SHA1签名算法

aofeng · aofeng · commit 3cce0a5fd408 · 2016-12-07T16:11:41.000+08:00
diff --git a/README.md b/README.md
@@ -111,6 +111,7 @@
 * [Blowfish加密与解密](src/cn/aofeng/demo/encrypt/Blowfish.java)
 * [AES加密与解密](src/cn/aofeng/demo/encrypt/AES.java)
 * [Blowfish, AES性能比较](src/cn/aofeng/demo/encrypt/PerformanceCompare.java)
+* [HMAC-SHA1签名算法](src/cn/aofeng/demo/encrypt/HmacSha1.java)
 
 #Java企业开发
 ##开源框架
diff --git a/src/cn/aofeng/demo/encrypt/EncryptAndDecrypt.java b/src/cn/aofeng/demo/encrypt/EncryptAndDecrypt.java
@@ -20,7 +20,7 @@
  */
 public class EncryptAndDecrypt {
 
-    private final static String CHARSET = "utf8";
+    public final static String CHARSET = "utf8";
 
     /**
      * 创建安全密钥。
@@ -46,8 +46,8 @@ public SecretKey createSecretKey(String encryptType, String keyStr)
      * 
      * @param encryptType 加密方式，如：AES，Blowfish。详情查看<a href="https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Cipher">Java Cryptography Architecture Standard Algorithm Name Documentation</a>
      * @param secretKey 密钥
-     * @param srcData 待加密的数据
-     * @return 数据加密后的字节数组
+     * @param srcData 待加密的源数据
+     * @return 加密后的二进制数据（字节数组）
      * @see #encrypt(String, SecretKey, String, String)
      */
     public byte[] encrypt(String encryptType, SecretKey secretKey,
@@ -58,6 +58,15 @@ public byte[] encrypt(String encryptType, SecretKey secretKey,
         return encrypt(encryptType, secretKey, srcData, null);
     }
 
+    /**
+     * 加密数据。
+     * 
+     * @param encryptType 加密类型，如：AES/CBC/PKCS5Padding
+     * @param secretKey 密钥
+     * @param srcData 待加密的源数据
+     * @param algorithmParam 某些加密算法的附加参数
+     * @return 加密后的二进制数据（字节数组）
+     */
     public byte[] encrypt(String encryptType, SecretKey secretKey,
             String srcData, String algorithmParam) throws InvalidKeyException,
             IllegalBlockSizeException, BadPaddingException,
diff --git a/src/cn/aofeng/demo/encrypt/HmacSha1.java b/src/cn/aofeng/demo/encrypt/HmacSha1.java
@@ -0,0 +1,53 @@
+package cn.aofeng.demo.encrypt;
+
+import static cn.aofeng.demo.util.LogUtil.log;
+
+import java.io.UnsupportedEncodingException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.Mac;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+
+import org.apache.commons.codec.binary.Base64;
+
+/**
+ * HMAC-SHA1签名算法。
+ * 
+ * @author <a href="mailto:aofengblog@163.com">聂勇</a>
+ */
+public class HmacSha1 {
+
+    public final String encryptType = "HmacSHA1";
+    public final String key = "abcdefgh_1234567";
+    
+    public void execute(String data) throws UnsupportedEncodingException, 
+            NoSuchAlgorithmException, InvalidKeyException {
+        EncryptAndDecrypt ead = new EncryptAndDecrypt();
+        
+        byte[] srcData = data.getBytes(EncryptAndDecrypt.CHARSET);
+        SecretKey secretKey = ead.createSecretKey(encryptType, key);   // 生成密钥对象
+        Mac mac = Mac.getInstance(encryptType);
+        mac.init(secretKey);
+        byte[] result = mac.doFinal(srcData);  
+        
+        log("使用%s签名后的数据：", encryptType);
+        log(Base64.encodeBase64String(result));
+    }
+    
+    public static void main(String[] args) throws InvalidKeyException, 
+            UnsupportedEncodingException, IllegalBlockSizeException, 
+            BadPaddingException, NoSuchAlgorithmException, 
+            NoSuchPaddingException, InvalidAlgorithmParameterException {
+        String data = "炎黄，汉字，english,do it,abcdefghijklmnopqrstuvwxyz,0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ, ~!@#$%^&*()_+=-";
+        log("待签名的数据：\n%s", data);
+
+        HmacSha1 hs = new HmacSha1();
+        hs.execute(data);
+    }
+
+}
