What is the ComputeHash equivalent of the HMACSHA1 class from C# in C++?

Question

C++ / C#

Good day
There is a code in C #:

HMACSHA1 hmacGenerator = new HMACSHA1();
hmacGenerator.Key = sharedSecretArray;
byte[] hashedData = hmacGenerator.ComputeHash(timeArray);

timeArray is byte[8]
sharedSecretArray is byte[]
How to get hash similarly in C++?

Answer 1

cryptopp

Answer 2

You can use openssl

#include <openssl/hmac.h>
// ...
std::string key = ... ;
unsigned char timeArray[8] = ... ;
unsigned char* hashedData = HMAC(EVP_sha1(), &key[0], key.length(), timeArray, sizeof(timeArray), NULL, NULL);  
// hashedData указывает на 20 байт хэша