| /* |
| * 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.kafka.common.security.scram.internals; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public enum ScramMechanism { |
| |
| SCRAM_SHA_256("SHA-256", "HmacSHA256", 4096), |
| SCRAM_SHA_512("SHA-512", "HmacSHA512", 4096); |
| |
| private final String mechanismName; |
| private final String hashAlgorithm; |
| private final String macAlgorithm; |
| private final int minIterations; |
| |
| private static final Map<String, ScramMechanism> MECHANISMS_MAP; |
| |
| static { |
| Map<String, ScramMechanism> map = new HashMap<>(); |
| for (ScramMechanism mech : values()) |
| map.put(mech.mechanismName, mech); |
| MECHANISMS_MAP = Collections.unmodifiableMap(map); |
| } |
| |
| ScramMechanism(String hashAlgorithm, String macAlgorithm, int minIterations) { |
| this.mechanismName = "SCRAM-" + hashAlgorithm; |
| this.hashAlgorithm = hashAlgorithm; |
| this.macAlgorithm = macAlgorithm; |
| this.minIterations = minIterations; |
| } |
| |
| public final String mechanismName() { |
| return mechanismName; |
| } |
| |
| public String hashAlgorithm() { |
| return hashAlgorithm; |
| } |
| |
| public String macAlgorithm() { |
| return macAlgorithm; |
| } |
| |
| public int minIterations() { |
| return minIterations; |
| } |
| |
| public static ScramMechanism forMechanismName(String mechanismName) { |
| return MECHANISMS_MAP.get(mechanismName); |
| } |
| |
| public static Collection<String> mechanismNames() { |
| return MECHANISMS_MAP.keySet(); |
| } |
| |
| public static boolean isScram(String mechanismName) { |
| return MECHANISMS_MAP.containsKey(mechanismName); |
| } |
| } |