Github user alopresto commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1294#discussion_r90783328
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/EncryptAttributes.java
---
@@ -0,0 +1,611 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.nifi.processors.standard;
+
+import org.apache.commons.codec.DecoderException;
+import org.apache.commons.codec.binary.Base64;
+import org.apache.commons.codec.binary.Hex;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.SideEffectFree;
+import org.apache.nifi.annotation.behavior.SupportsBatching;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.logging.ComponentLog;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.processors.standard.util.crypto.CipherUtility;
+import org.apache.nifi.processors.standard.util.crypto.KeyedEncryptor;
+import
org.apache.nifi.processors.standard.util.crypto.OpenPGPKeyBasedEncryptor;
+import
org.apache.nifi.processors.standard.util.crypto.OpenPGPPasswordBasedEncryptor;
+import
org.apache.nifi.processors.standard.util.crypto.PasswordBasedEncryptor;
+import org.apache.nifi.security.util.EncryptionMethod;
+import org.apache.nifi.security.util.KeyDerivationFunction;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.security.Security;
+import java.text.Normalizer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Provides functionality of encrypting attributes with various algorithms.
+ * Note. It'll not modify filename or uuid as they are sensitive and are
+ * internally used by either Algorithm itself or FlowFile repo.
+ */
+@EventDriven
+@SideEffectFree
+@SupportsBatching
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"encryption", "decryption", "password", "JCE", "OpenPGP", "PGP",
"GPG"})
+@CapabilityDescription("Encrypts or Decrypts a FlowFile attributes using
either symmetric encryption with a password " +
+ "and randomly generated salt, or asymmetric encryption using a
public and secret key.")
+public class EncryptAttributes extends AbstractProcessor {
+
+ public static final String ENCRYPT_MODE = "Encrypt";
+ public static final String DECRYPT_MODE = "Decrypt";
+
+ public static final String WEAK_CRYPTO_ALLOWED_NAME = "allowed";
+ public static final String WEAK_CRYPTO_NOT_ALLOWED_NAME =
"not-allowed";
+
+ public static final PropertyDescriptor ATTRIBUTES_TO_ENCRYPT = new
PropertyDescriptor.Builder()
+ .name("Attributes to encrypt")
--- End diff --
Needs `displayName` field.
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