adservices/service-core/java/com/android/adservices/service/topics/Encrypter.java

/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * 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 com.android.adservices.service.topics;

/** Interface for algorithms to encrypt Topics data. */
public interface Encrypter {
    /**
     * Encrypt {@code plainText} to cipher text {@code byte[]}.
     *
     * @param publicKey the public key used for encryption
     * @param plainText the plain text string to encrypt
     * @param contextInfo additional context info used for encryption
     * @return the encrypted ciphertext
     */
    byte[] encrypt(byte[] publicKey, byte[] plainText, byte[] contextInfo);
}