io.jsonwebtoken.security.AssociatedDataSupplier Maven / Gradle / Ivy
/*
* Copyright (C) 2021 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.security;
import java.io.InputStream;
/**
* Provides any "associated data" that must be integrity protected (but not encrypted) when performing
* AEAD encryption or decryption.
*
* @see #getAssociatedData()
* @since 0.12.0
*/
public interface AssociatedDataSupplier {
/**
* Returns any data that must be integrity protected (but not encrypted) when performing
* AEAD encryption or decryption, or
* {@code null} if no additional data must be integrity protected.
*
* @return any data that must be integrity protected (but not encrypted) when performing
* AEAD encryption or decryption, or
* {@code null} if no additional data must be integrity protected.
*/
InputStream getAssociatedData();
}
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