c++ botan库AES-128加密

1.源码实现

#include <iostream>
#include <string>
#include <botan/botan.h>

using namespace std;
using namespace Botan;

/*加解密*/
string cryptoAES128(string input, string passphrase, Cipher_Dir opt)
{
    HashFunction *hash = get_hash("MD5");
    SymmetricKey key = hash->process(passphrase);
    SecureVector<byte> raw_iv = hash->process('0' + passphrase);
    InitializationVector iv(raw_iv);

    Pipe pipe(get_cipher("AES-128/CBC", key, iv, opt));

    pipe.process_msg(input);

    string output = pipe.read_all_as_string();

    return output;
}

int main()
{
    string input = "你好, 世界!";
    string key = "123456";
    string output;
    string plain;

    /*测试AES-128加密*/
    output = cryptoAES128(input, key, ENCRYPTION);

    cout << "密文大小: " << output.size() << endl;

    /*测试AES-128解密*/
    plain = cryptoAES128(output, key, DECRYPTION);

    cout << "明文内容: " << plain << endl;

    return 0;
}

2.编译源码

$ g++ -o test test.cpp -std=c++11 -I/usr/local/include/botan-2 -Wno-cpp -Wno-deprecated-declarations -lbotan-2

3.运行及其结果

$ ./test
密文大小: 16
明文内容: 你好, 世界!