001/* 002 * oauth2-oidc-sdk 003 * 004 * Copyright 2012-2021, Connect2id Ltd and contributors. 005 * 006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use 007 * this file except in compliance with the License. You may obtain a copy of the 008 * License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software distributed 013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the 015 * specific language governing permissions and limitations under the License. 016 */ 017 018package com.nimbusds.openid.connect.sdk.assurance.evidences.attachment; 019 020 021import net.jcip.annotations.Immutable; 022 023import com.nimbusds.oauth2.sdk.id.Identifier; 024 025 026/** 027 * Hash algorithm. 028 * 029 * <p>Related specifications: 030 * 031 * <ul> 032 * <li>OpenID Connect for Identity Assurance 1.0, section 5.1.2.2. 033 * <li>IANA Named Information Hash Algorithm Registry 034 * </ul> 035 */ 036@Immutable 037public final class HashAlgorithm extends Identifier { 038 039 040 private static final long serialVersionUID = -3699666147154820591L; 041 042 043 /** 044 * SHA-256. 045 */ 046 public static final HashAlgorithm SHA_256 = new HashAlgorithm("sha-256"); 047 048 049 /** 050 * SHA-384. 051 */ 052 public static final HashAlgorithm SHA_384 = new HashAlgorithm("sha-384"); 053 054 055 /** 056 * SHA-512. 057 */ 058 public static final HashAlgorithm SHA_512 = new HashAlgorithm("sha-512"); 059 060 061 /** 062 * Creates a new hash algorithm with the specified name, normalised to 063 * lowercase. 064 * 065 * @param name The name. Must not be {@code null}. 066 */ 067 public HashAlgorithm(final String name) { 068 super(name.toLowerCase()); 069 } 070 071 072 @Override 073 public boolean equals(final Object object) { 074 075 return object instanceof HashAlgorithm && 076 this.toString().equals(object.toString()); 077 } 078}