DES.h

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// Copyright 2024 libsese
//
// 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.
 
 
#pragma once
 
#include <sese/Config.h>
#include <sese/security/evp/Crypter.h>
 
namespace sese::security::evp {
 
class SESE_DEPRECATED_WITH("DES 加密已从 OpenSSL 中移除") DESEncrypter final : public Crypter {
public:
    enum class Type {
        ECB,
        CBC,
        CFB1,
        CFB8,
        CFB64,
        EDE,
        EDE3,
    };
 
    DESEncrypter(Type type, const std::array<unsigned char, 8> &key);
 
    DESEncrypter(Type type, const std::string &key);
 
    ~DESEncrypter() override;
 
    int update(void *out, int &out_len, const void *in, int in_len) const noexcept override;
 
    int final(void *out, int &out_len) const noexcept override;
 
private:
    void *ctx;
    unsigned char key[8];
};
 
class SESE_DEPRECATED_WITH("DES 加密已从 OpenSSL 中移除") DESDecrypter final : public Crypter {
public:
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#elif defined(_MSC_VER)
#pragma warning(disable : 4996)
#elif defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
    using Type = DESEncrypter::Type; // NOLINT
#if defined(__clang__)
#pragma clang diagnostic pop
#elif defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
 
    DESDecrypter(Type type, const std::array<unsigned char, 8> &key);
 
    DESDecrypter(Type type, const std::string &key);
 
    ~DESDecrypter() override;
 
    int update(void *out, int &out_len, const void *in, int in_len) const noexcept override;
 
    int final(void *out, int &out_len) const noexcept override;
 
private:
    void *ctx;
    unsigned char key[8];
};
 
} // namespace sese::security::evp