/*
 * Copyright 2009 Funambol, Inc.
 *
 * 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.
 */

/* $Id$ */

#pragma once

#include <stddef.h>

namespace NS_DM_Client
{

class ICrypto
{
public:
    virtual bool HMAC_SHA256
    (
        const unsigned char* inputData, size_t inputDataLength,
        const unsigned char* key, size_t keyLength,
        unsigned char* outputData, size_t& outputDataLength
    ) = 0;

    virtual bool AES_CCM_Encrypt
    (
        const unsigned char* iv, size_t ivLength,
        const unsigned char* key, size_t keyLength,
        const unsigned char* inputData, size_t inputDataLength,
        unsigned char *outputData, size_t& outputDataLength
    ) = 0;

    virtual bool AES_CCM_Decrypt
    (
        const unsigned char* iv, size_t ivLength,
        const unsigned char* key, size_t keyLength,
        const unsigned char* inputData, size_t inputDataLength,
        unsigned char *outputData, size_t& outputDataLength
    ) = 0;

    virtual void Release() = 0;

    virtual ~ICrypto() { }
};

/// create 3dparty specific instance of ICrypto
ICrypto* CreateCryptoImpl();

}
