1 files changed, 43 insertions, 0 deletions
diff --git a/csarvalidation/src/main/java/org/onap/cvc/csar/security/ShaHashCodeGenerator.java b/csarvalidation/src/main/java/org/onap/cvc/csar/security/ShaHashCodeGenerator.java
new file mode 100644
index 0000000..5b6b474
--- /dev/null
+++ b/csarvalidation/src/main/java/org/onap/cvc/csar/security/ShaHashCodeGenerator.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2019 Nokia
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onap.cvc.csar.security;
+
+import org.bouncycastle.util.encoders.Hex;
+
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class ShaHashCodeGenerator {
+
+    public String generateSha256(byte[] source) throws NoSuchAlgorithmException {
+        final String algorithm = "SHA-256";
+        return generateHashCode(source, algorithm);
+    }
+
+    public String generateSha512(byte[] source) throws NoSuchAlgorithmException {
+        final String algorithm = "SHA-512";
+        return generateHashCode(source, algorithm);
+    }
+
+    private String generateHashCode(byte[] source, String algorithm) throws NoSuchAlgorithmException {
+        MessageDigest digest = MessageDigest.getInstance(algorithm);
+        byte[] hash = digest.digest(source);
+        return new String(Hex.encode(hash));
+    }
+}