AES128加密库加密输出垃圾
AES128加密库加密输出垃圾
提问于 2018-12-13 03:09:08
我正在使用这个已解决的帖子作为参考，但似乎无法获得相同的结果：AES128 in libgcrypt not encrypting
当我将字符串打印到控制台时，我得到了垃圾字符。我认为这可能是由于'\0'在字符串中，但我不确定如何去做。
//aes.cpp
#include "aes.h"
#include <iostream>
#include <stdio.h>
#define GCRY_CIPHER GCRY_CIPHER_AES128 // Pick the cipher here
#define GCRY_MODE GCRY_CIPHER_MODE_ECB // Pick the cipher mode here
aes::aes(std::string k)
{
key_ = k;
keyLength_ = gcry_cipher_get_algo_keylen(GCRY_CIPHER);
gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
gcry_cipher_open(&handle, GCRY_CIPHER, GCRY_MODE, 0);
gcry_cipher_setkey(handle, key_.c_str(), keyLength_);
}
void aes::encrypt(string text, std::vector<char>& ret) {
size_t textLength = text.size() + 1;
ret.resize(textLength);
gcry_cipher_encrypt(handle, ret.data(), textLength, text.c_str(), textLength);
}
string aes::decrypt(std::vector<char> const& text) {
size_t textLength = text.size() + 1;
char * decBuffer = new char[textLength];
gcry_cipher_decrypt(handle, decBuffer, textLength, text.data(), textLength);
string ret (decBuffer);
delete [] decBuffer;
return ret;
}//aes.h
#include <gcrypt.h>
#include <iostream>
#ifndef AES_H
#define AES_H
class aes
{
public:
aes(std::string);
~aes();
gcry_cipher_hd_t handle;
void encrypt(std::string, std::vector<char>&);
std::string decrypt(std::vector<char> const&);
private:
std::string key_;
size_t keyLength_;
};
#endif // AES_H//main.cpp
#include "aes.h"
#include <iostream>
int main()
{
std::vector<char> data;
aes bb = aes("one test AES key");
bb.encrypt("Some message", data);
std::string dec = bb.decrypt(data);
std::cout << "decrypted string " << dec << std::endl;
return 0;
//output gives me: decrypted string �
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/53749797
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