java

Java/Java源代码/codedemo/encrypt/PerformanceCompare.java

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+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.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+
+/**
+ * 加密解密性能比较。
+ * 
+ * @author <a href="mailto:nieyong@ucweb.com">聂勇</a>
+ */
+public class PerformanceCompare extends EncryptAndDecrypt {
+
+    public void blowfishPerformence(String data)
+            throws UnsupportedEncodingException, InvalidKeyException,
+            IllegalBlockSizeException, BadPaddingException,
+            NoSuchAlgorithmException, NoSuchPaddingException,
+            InvalidAlgorithmParameterException {
+        Blowfish bf = new Blowfish();
+        SecretKey secretKey = createSecretKey(bf.encryptType, bf.key);
+        long startTime = System.currentTimeMillis();
+        for (int j = 0; j < 100000; j++) {
+            bf.encrypt(bf.encryptType, secretKey, data+j);
+        }
+        long endTime = System.currentTimeMillis();
+        long usedTime = endTime - startTime;
+        log("使用%s进行%d次加密消耗时间%d毫秒", bf.encryptType, 100000, usedTime);
+    }
+
+    public void aesPerformence(String data)
+            throws UnsupportedEncodingException, InvalidKeyException,
+            IllegalBlockSizeException, BadPaddingException,
+            NoSuchAlgorithmException, NoSuchPaddingException,
+            InvalidAlgorithmParameterException {
+        AES aes = new AES();
+        SecretKey secretKey = createSecretKey("AES", aes.key);
+        long startTime = System.currentTimeMillis();
+        for (int j = 0; j < 100000; j++) {
+            aes.encrypt(aes.encryptType, secretKey, data+j,
+                    aes.algorithmParam);
+        }
+        long endTime = System.currentTimeMillis();
+        long usedTime = endTime - startTime;
+        log("使用%s进行%d次加密消耗时间%d毫秒", aes.encryptType, 100000, usedTime);
+    }
+
+    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("待加密的数据：\n%s", data);
+
+        PerformanceCompare pc = new PerformanceCompare();
+        // AES
+        pc.aesPerformence(data);
+
+        // Blowfish
+        pc.blowfishPerformence(data);
+    }
+
+}