software.amazon.awssdk.auth.signer.internal.chunkedencoding.AwsChunkSigner Maven / Gradle / Ivy

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The AWS SDK for Java - Auth module holds the classes that are used for authentication with services

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 software.amazon.awssdk.auth.signer.internal.chunkedencoding;

import software.amazon.awssdk.annotations.SdkInternalApi;

/**
 * Represents a signer for a chunk of data, that returns a new signature based on the data and the
 * previous signature. This signature should be a string of hex characters.
 */
@SdkInternalApi
public interface AwsChunkSigner {

    String signChunk(byte[] chunkData, String previousSignature);

    String signChecksumChunk(byte[] calculatedChecksum, String previousSignature, String checksumHeaderForTrailer);
}