io.jsonwebtoken.impl.crypto.SignatureProvider Maven / Gradle / Ivy

/*
 * Copyright (C) 2014 jsonwebtoken.io
 *
 * Licensed 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 io.jsonwebtoken.impl.crypto;

import io.jsonwebtoken.SignatureAlgorithm;
import io.jsonwebtoken.lang.Assert;

import java.security.Key;

abstract class SignatureProvider {

    protected final SignatureAlgorithm alg;
    protected final Key                key;

    protected SignatureProvider(SignatureAlgorithm alg, Key key) {
        Assert.notNull(alg, "SignatureAlgorithm cannot be null.");
        Assert.notNull(key, "Key cannot be null.");
        this.alg = alg;
        this.key = key;
    }
}