39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
#include "../hmac_sha256.h"
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#include <cassert>
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <vector>
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#define SHA256_HASH_SIZE 32
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int main() {
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const std::string str_data = "Hello World!";
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const std::string str_key = "super-secret-key";
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std::stringstream ss_result;
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// Allocate memory for the HMAC
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std::vector<uint8_t> out(SHA256_HASH_SIZE);
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// Call hmac-sha256 function
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hmac_sha256(str_key.data(), str_key.size(), str_data.data(), str_data.size(),
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out.data(), out.size());
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// Convert `out` to string with std::hex
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for (uint8_t x : out) {
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ss_result << std::hex << std::setfill('0') << std::setw(2) << (int)x;
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}
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// Print out the result
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std::cout << "Message: " << str_data << std::endl;
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std::cout << "Key: " << str_key << std::endl;
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std::cout << "HMAC: " << ss_result.str() << std::endl;
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// This assertion fails if something went wrong
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assert(ss_result.str() ==
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"4b393abced1c497f8048860ba1ede46a23f1ff5209b18e9c428bddfbb690aad8");
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return 0;
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}
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