Improve the servicesignature performance.

aliyun · Feb 15, 2023 · 3b1b2f1 · 3b1b2f1
1 parent 6dfc15a
commit 3b1b2f1
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diff --git a/src/main/java/com/aliyun/oss/common/auth/HmacSHA1Signature.java b/src/main/java/com/aliyun/oss/common/auth/HmacSHA1Signature.java
@@ -64,4 +64,11 @@ public String computeSignature(String key, String data) {
     public byte[] computeHash(byte[] key, byte[] data) {
         return sign(key, data, macInstance, LOCK, ALGORITHM);
     }
+
+    static {
+        try {
+            macInstance = Mac.getInstance(ALGORITHM);
+        } catch (Throwable e) {
+        }
+    }
 }
diff --git a/src/main/java/com/aliyun/oss/common/auth/HmacSHA256Signature.java b/src/main/java/com/aliyun/oss/common/auth/HmacSHA256Signature.java
@@ -64,4 +64,11 @@ public String computeSignature(String key, String data) {
     public byte[] computeHash(byte[] key, byte[] data) {
         return sign(key, data, macInstance, LOCK, ALGORITHM);
     }
+
+    static {
+        try {
+            macInstance = Mac.getInstance(ALGORITHM);
+        } catch (Throwable e) {
+        }
+    }
 }