X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=it%2Fotf.git;a=blobdiff_plain;f=otf-service-api%2Fsrc%2Fmain%2Fjava%2Forg%2Foran%2Fotf%2Fcommon%2Futility%2FRSAEncryptDecrypt.java;fp=otf-service-api%2Fsrc%2Fmain%2Fjava%2Forg%2Foran%2Fotf%2Fcommon%2Futility%2FRSAEncryptDecrypt.java;h=1309d6d3acb4ce8b04b94f1ed450842107220c66;hp=0000000000000000000000000000000000000000;hb=14f6f95c84a4a1fa8774190db4a03fd0214ec55f;hpb=f49bd1efeaaddd4891c1f329b18d8cfb28b3e75b

diff --git a/otf-service-api/src/main/java/org/oran/otf/common/utility/RSAEncryptDecrypt.java b/otf-service-api/src/main/java/org/oran/otf/common/utility/RSAEncryptDecrypt.java
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+++ b/otf-service-api/src/main/java/org/oran/otf/common/utility/RSAEncryptDecrypt.java
@@ -0,0 +1,54 @@
+/*  Copyright (c) 2019 AT&T Intellectual Property.                             #
+#                                                                              #
+#   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                                    #
+#                                                                              #
+#       http://www.apache.org/licenses/LICENSE-2.0                             #
+#                                                                              #
+#   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.oran.otf.common.utility;
+
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import javax.crypto.Cipher;
+import org.springframework.stereotype.Service;
+
+@Service
+public class RSAEncryptDecrypt {
+
+  private KeyPair keyPair;
+
+  public RSAEncryptDecrypt() throws NoSuchAlgorithmException {
+    this.keyPair = buildKeyPair();
+  }
+
+  private KeyPair buildKeyPair() throws NoSuchAlgorithmException {
+    final int keySize = 2048;
+    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
+    keyPairGenerator.initialize(keySize);
+    return keyPairGenerator.genKeyPair();
+  }
+
+  public byte[] encrypt(String message) throws Exception {
+    Cipher cipher = Cipher.getInstance("RSA");
+    cipher.init(Cipher.ENCRYPT_MODE, this.keyPair.getPrivate());
+
+    return cipher.doFinal(message.getBytes());
+  }
+
+  public byte[] decrypt(byte[] encrypted) throws Exception {
+    Cipher cipher = Cipher.getInstance("RSA");
+    cipher.init(Cipher.DECRYPT_MODE, this.keyPair.getPublic());
+
+    return cipher.doFinal(encrypted);
+  }
+}