001/* 002 * nimbus-jose-jwt 003 * 004 * Copyright 2012-2016, 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.jose.crypto.impl; 019 020 021import java.util.Collections; 022import java.util.Set; 023 024import com.nimbusds.jose.JWSAlgorithm; 025 026 027/** 028 * The base abstract class for Edwards-curve Digital Signature Algorithm 029 * (EdDSA) signers and validators of {@link com.nimbusds.jose.JWSObject JWS 030 * objects}. 031 * 032 * <p>Supports the following algorithm: 033 * 034 * <ul> 035 * <li>{@link com.nimbusds.jose.JWSAlgorithm#EdDSA} 036 * </ul> 037 * 038 * @author Tim McLean 039 * @version 2018-07-11 040 */ 041public abstract class EdDSAProvider extends BaseJWSProvider { 042 043 044 /** 045 * The supported JWS algorithms by the EdDSA provider class. 046 */ 047 public static final Set<JWSAlgorithm> SUPPORTED_ALGORITHMS; 048 049 050 static { 051 SUPPORTED_ALGORITHMS = Collections.singleton(JWSAlgorithm.EdDSA); 052 } 053 054 055 /** 056 * Creates a new Edwards-curve Digital Signature Algorithm (EdDSA) 057 * provider. 058 */ 059 protected EdDSAProvider() { 060 061 super(SUPPORTED_ALGORITHMS); 062 } 063} 064