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需要安装openssl需要安装openssl-dev需要配置CMakeLists.txt文件集体内容可以参考我提供的相关参考链接
AES_file.h
#include openssl/aes.h
#include iostream
#include fstream
#include cstring#define RELEASE_ARRAY(P) if…前提准备条件
需要安装openssl需要安装openssl-dev需要配置CMakeLists.txt文件集体内容可以参考我提供的相关参考链接
AES_file.h
#include openssl/aes.h
#include iostream
#include fstream
#include cstring#define RELEASE_ARRAY(P) if (P) \
{ \delete[] P; \P NULL; \
}class AES{
public:// AES文件加密函数 ///int TestAesEncryptFile(std::string original_backup_file_path, std::string backup_dir_path, std::string password){int encrypt_chunk_size 16;std::ifstream original_backup_file(original_backup_file_path.c_str(), std::ios::binary);std::ofstream backup_dir(backup_dir_path, std::ios::binary);if (!original_backup_file){std::cout Can not open original_backup_file file. std::endl;return 1;}if (!backup_dir){std::cout Can not open backup_dir_path file. std::endl;return 1;}//用指定密钥对一段内存进行加密结果放在outbuffer中unsigned char aes_keybuf[32];memset(aes_keybuf, 0, sizeof(aes_keybuf));strcpy((char *)aes_keybuf, password.c_str());AES_KEY aeskey;AES_set_encrypt_key(aes_keybuf, 256, aeskey);char *in_data new char[encrypt_chunk_size 1];char *out_data new char[encrypt_chunk_size 1];while (!original_backup_file.eof()){original_backup_file.read(in_data, encrypt_chunk_size);if (original_backup_file.gcount() encrypt_chunk_size){backup_dir.write(in_data, original_backup_file.gcount());}else{AES_encrypt((const unsigned char *)in_data, (unsigned char *)out_data, aeskey);backup_dir.write(out_data, original_backup_file.gcount());}};backup_dir.close();original_backup_file.close();RELEASE_ARRAY(in_data);RELEASE_ARRAY(out_data);return 0;}// AES文件解密函数 //int TestAesDecryptFile(std::string in_file_path, std::string out_file_path, std::string password){int encrypt_chunk_size 16;std::ifstream original_backup_file(in_file_path.c_str(), std::ios::binary);std::ofstream backup_dir(out_file_path, std::ios::binary);if (!original_backup_file){std::cout Can not open original_backup_file file. std::endl;return 1;}if (!backup_dir){std::cout Can not open backup_dir file. std::endl;return 1;}//用指定密钥对一段内存进行加密结果放在outbuffer中unsigned char aes_keybuf[32];memset(aes_keybuf, 0, sizeof(aes_keybuf));strcpy((char *)aes_keybuf, password.c_str());AES_KEY aeskey;AES_set_decrypt_key(aes_keybuf, 256, aeskey);char *in_data new char[encrypt_chunk_size 1];char *out_data new char[encrypt_chunk_size 1];while (!original_backup_file.eof()){original_backup_file.read(in_data, encrypt_chunk_size);if (original_backup_file.gcount() encrypt_chunk_size){backup_dir.write(in_data, original_backup_file.gcount());}else{AES_decrypt((unsigned char *)in_data, (unsigned char *)out_data, aeskey);backup_dir.write(out_data, original_backup_file.gcount());}};backup_dir.close();original_backup_file.close();RELEASE_ARRAY(in_data);RELEASE_ARRAY(out_data);return 0;}
};main.cpp
#include iostream
#include load_or_save_db.h
#include include/AES_file.hint main() {time_t t1, t2, t3, t4;t1 time(nullptr);printf(加解密起始时间 %s\n, ctime(t1));std::string password xcdf123456;AES aes;// 数据开始加密aes.TestAesEncryptFile(/home/gsc/Projects/1.txt, /home/gsc/Projects/2.txt, password);t2 time(nullptr);printf(AES256加密成功!\n);printf(加密用时: %ld秒\n, (t2 - t1));t3 time(NULL);// 数据开始解密aes.TestAesDecryptFile(/home/gsc/Projects/2.txt, /home/gsc/Projects/3.txt, password);t4 time(NULL);printf(AES256解密成功!\n);printf(解密用时: %lld秒\n, (t4 - t3));return 0;
}参考链接
C: 基于OpenSSL的AES256加解密测试clion中链接openssl库
