Have you had experience working with data encryption algorithms?

Yes, I have experience working with data encryption algorithms, including symmetric (e.g., AES) and asymmetric (e.g., RSA) algorithms. In C/C++, I often used the OpenSSL libraries for implementing data encryption and decryption.

Example of using AES in OpenSSL:

#include <openssl/aes.h>
#include <cstring>

int main() {
    AES_KEY encryptKey;
    unsigned char key[16] = {0}; // 128-bit key
    unsigned char data[16] = "Hello, world!!!";
    unsigned char encrypted[16];

    AES_set_encrypt_key(key, 128, &encryptKey);
    AES_encrypt(data, encrypted, &encryptKey);

    // encrypted now contains the encrypted data
    return 0;
}

This approach allows ensuring data confidentiality during transmission or storage.