How do I implement PBKDF2 in C++11?

How do I implement PBKDF2 in C++11?

To implement PBKDF2 in C++11, you can use the OpenSSL library. First, ensure you have OpenSSL installed.

What are the key parameters I need to set for PBKDF2?

The key parameters include the password, salt, iteration count, and desired key length.

Can you provide a code example?

Sure! Here's a simple example:

#include <openssl/evp.h>
#include <openssl/rand.h>
#include <string>

std::string pbkdf2(const std::string& password, const std::string& salt, int iterations, int key_length) {
    unsigned char key[key_length];
    PKCS5_PBKDF2_HMAC_SHA1(password.c_str(), password.length(), (unsigned char*)salt.c_str(), salt.length(), iterations, key_length, key);
    return std::string(reinterpret_cast<char*>(key), key_length);
}

What should I consider for security when using PBKDF2?

Make sure to use a strong, unique salt for each password and choose a high iteration count to increase security.