/*
 * 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.
 */

/**
 * \defgroup CryptoAPI Cryptography API
 * @brief Cryptographic Functions for ACSDK
 *
 * This module provides APIs for encrypting and decrypting data, and for computing secure digests.
 *
 * There are two ways for data encryption and decryption: through user-space cryptographic functions, accessible through
 * \ref alexaClientSDK::acsdkCryptoInterfaces::CryptoFactoryInterface and through hardware security module (HSM)
 * accessible through \ref alexaClientSDK::acsdkCryptoInterfaces::KeyStoreInterface.
 *
 * When using \ref alexaClientSDK::acsdkCryptoInterfaces::CryptoFactoryInterface user can generate keys and
 * initialization vectors through \ref alexaClientSDK::acsdkCryptoInterfaces::KeyFactoryInterface to use with
 * cryptographic functions. When working with \ref alexaClientSDK::acsdkCryptoInterfaces::KeyStoreInterface, keys must
 * be pre-provisioned by device manufacturer and those keys can be used through references (aliases).
 *
 * \sa CryptoIMPL
 * \sa CryptoPKCS11
 *
 * \sa alexaClientSDK::acsdkCryptoInterfaces
 * \sa alexaClientSDK::acsdkCryptoInterfaces::test
 */