[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088690475
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
+.displayName("Message Authentication Code")
+.description("The MAC to compare with the calculated value")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+.build();
+
+protected static final Relationship FAILURE = new Relationship.Builder()
+.name("failure")
+.description("Signature Verification Failed")
+.build();
+
+protected static final Relationship SUCCESS = new Relationship.Builder()
+.name("success")
+.description("Signature Verification Succeeded")
+.build();
+
+private static final List PROPERTIES =
Collections.unmodifiableList(Arrays.asList(MAC_ALGORITHM, SECRET_KEY, MAC));
+private static final Set RELATIONSHIPS =
Collections.unmodifiableSet(new HashSet<>(Arrays.asList(SUCCESS,
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088690187
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
Review Comment:
done
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088690017
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
Review Comment:
done
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.Exp
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088689594
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
+.displayName("Message Authentication Code")
+.description("The MAC to compare with the calculated value")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+.build();
+
+protected static final Relationship FAILURE = new Relationship.Builder()
+.name("failure")
+.description("Signature Verification Failed")
+.build();
+
+protected static final Relationship SUCCESS = new Relationship.Builder()
+.name("success")
+.description("Signature Verification Succeeded")
+.build();
+
+private static final List PROPERTIES =
Collections.unmodifiableList(Arrays.asList(MAC_ALGORITHM, SECRET_KEY, MAC));
+private static final Set RELATIONSHIPS =
Collections.unmodifiableSet(new HashSet<>(Arrays.asList(SUCCESS,
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088689378
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
+.displayName("Message Authentication Code")
+.description("The MAC to compare with the calculated value")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+.build();
+
+protected static final Relationship FAILURE = new Relationship.Builder()
+.name("failure")
+.description("Signature Verification Failed")
+.build();
+
+protected static final Relationship SUCCESS = new Relationship.Builder()
+.name("success")
+.description("Signature Verification Succeeded")
+.build();
+
+private static final List PROPERTIES =
Collections.unmodifiableList(Arrays.asList(MAC_ALGORITHM, SECRET_KEY, MAC));
+private static final Set RELATIONSHIPS =
Collections.unmodifiableSet(new HashSet<>(Arrays.asList(SUCCESS,
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088689103
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
Review Comment:
done
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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.
+ *
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088688817
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
Review Comment:
done
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[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088688552
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
Review Comment:
done
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.se
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1088688192
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
+.displayName("Message Authentication Code")
+.description("The MAC to compare with the calculated value")
Review Comment:
added the mac encoding property
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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
[GitHub] [nifi] ferencerdei commented on a diff in pull request #6877: NIFI-11087 Add VerifyContentMAC Processor
ferencerdei commented on code in PR #6877:
URL: https://github.com/apache/nifi/pull/6877#discussion_r1086476629
##
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/VerifyContentMAC.java:
##
@@ -0,0 +1,187 @@
+/*
+ * 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 java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"Encryption", "Signing", "MAC", "HMAC"})
+@CapabilityDescription("Calculates MAC using the provided Secret Key and
compares it with the provided MAC parameter")
+@EventDriven
+@WritesAttributes({
+@WritesAttribute(attribute = VerifyContentMAC.MAC_CALCULATED_ATTRIBUTE,
description = "The calculated MAC value"),
+@WritesAttribute(attribute = VerifyContentMAC.MAC_ALGORITHM_ATTRIBUTE,
description = "The MAC algorithm")})
+public class VerifyContentMAC extends AbstractProcessor {
+
+protected static final String HMAC_SHA256 = "HmacSHA256";
+protected static final String HMAC_SHA512 = "HmacSHA512";
+
+protected static final PropertyDescriptor MAC_ALGORITHM = new
PropertyDescriptor.Builder()
+.name("MAC_ALGORITHM")
+.displayName("MAC Algorithm")
+.description("Cryptographic Hash Function")
+.allowableValues(HMAC_SHA256, HMAC_SHA512)
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+protected static final PropertyDescriptor SECRET_KEY = new
PropertyDescriptor.Builder()
+.name("SECRET_KEY")
+.displayName("Secret key")
+.description("Cryptographic key to calculate the hash")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.sensitive(true)
+.build();
+
+protected static final PropertyDescriptor MAC = new
PropertyDescriptor.Builder()
+.name("MAC")
+.displayName("Message Authentication Code")
+.description("The MAC to compare with the calculated value")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+.build();
+
+protected static final Relationship FAILURE = new Relationship.Builder()
+.name("failure")
+.description("Signature Verification Failed")
+.build();
+
+protected static final Relationship SUCCESS = new Relationship.Builder()
+.name("success")
+.description("Signature Verification Succeeded")
+.build();
+
+private static final List PROPERTIES =
Collections.unmodifiableList(Arrays.asList(MAC_ALGORITHM, SECRET_KEY, MAC));
+private static final Set RELATIONSHIPS =
Collections.unmodifiableSet(new HashSet<>(Arrays.asList(SUCCESS,
