#ifndef SYMMETRICENCRYPTIONBOX_H #define SYMMETRICENCRYPTIONBOX_H #include "Openssl_crypto.h" class SymmetricEncryptionBox { uint8_t iv[12]; uint8_t symmetric_key[32]; // SHA256 used with ECDHE -> or AES whatever symmetric_key. // increments last 4 bytes (in big-endian order) uint32_t aes_gcm_increment_iv_internal_call(uint8_t* iv); public: // SymmetricEncryptionBox(); void set_symmetric_key(uint8_t* given_key); void get_symmetric_key(uint8_t* op_key); uint32_t encrypt_decrypt(int enc, uint8_t* plaintext, uint32_t plaintext_length, uint8_t* ciphertext, uint32_t* ciphertext_length, uint8_t* tag); // ~SymmetricEncryptionBox(); }; #endif