test/compiler/7184394/TestAESBase.java

rev 9055 : 8073108: Use x86 and SPARC CPU instructions for GHASH acceleration
Reviewed-by: kvn, jrose

@@ -27,10 +27,11 @@
  */
 
 import javax.crypto.Cipher;
 import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKey;
+import javax.crypto.spec.GCMParameterSpec;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 import java.security.AlgorithmParameters;
 
 import java.util.Random;

@@ -62,10 +63,14 @@
   Random random = new Random(0);
   Cipher cipher;
   Cipher dCipher;
   AlgorithmParameters algParams;
   SecretKey key;
+  GCMParameterSpec gcm_spec;
+  byte[] aad;
+  int tlen = 12;
+  byte[] iv;
 
   static int numThreads = 0;
   int  threadId;
   static synchronized int getThreadId() {
     int id = numThreads;

@@ -100,10 +105,16 @@
 
       if (mode.equals("CBC")) {
         int ivLen = (algorithm.equals("AES") ? 16 : algorithm.equals("DES") ? 8 : 0);
         IvParameterSpec initVector = new IvParameterSpec(new byte[ivLen]);
         cipher.init(Cipher.ENCRYPT_MODE, key, initVector);
+      } else if (mode.equals("GCM")) {
+          iv = new byte[64];
+          random.nextBytes(iv);
+          aad = new byte[5];
+          random.nextBytes(aad);
+          gcm_init();
       } else {
         algParams = cipher.getParameters();
         cipher.init(Cipher.ENCRYPT_MODE, key, algParams);
       }
       algParams = cipher.getParameters();

@@ -186,6 +197,14 @@
     System.out.println(kind + " cipher provider: " + cipher.getProvider());
     System.out.println(kind + " cipher algorithm: " + cipher.getAlgorithm());
   }
 
   abstract void childShowCipher();
+
+  void gcm_init() throws Exception {
+    tlen = 12;
+    gcm_spec = new GCMParameterSpec(tlen * 8, iv);
+    cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
+    cipher.init(Cipher.ENCRYPT_MODE, key, gcm_spec);
+    cipher.update(aad);
+  }
 }