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#include "auth_algo.hpp"
#include <openssl/hmac.h>
#include <openssl/sha.h>
#include <iostream>
namespace cipher
{
namespace rakp_auth
{
std::vector<uint8_t> AlgoSHA1::generateHMAC(std::vector<uint8_t>& input) const
{
std::vector<uint8_t> output(SHA_DIGEST_LENGTH);
unsigned int mdLen = 0;
if (HMAC(EVP_sha1(), userKey.data(), userKey.size(), input.data(),
input.size(), output.data(), &mdLen) == NULL)
{
std::cerr << "Generate HMAC failed\n";
output.resize(0);
}
return output;
}
std::vector<uint8_t> AlgoSHA1::generateICV(std::vector<uint8_t>& input) const
{
std::vector<uint8_t> output(SHA_DIGEST_LENGTH);
unsigned int mdLen = 0;
if (HMAC(EVP_sha1(), sessionIntegrityKey.data(), SHA_DIGEST_LENGTH,
input.data(), input.size(), output.data(), &mdLen) == NULL)
{
std::cerr << "Generate Session Integrity Key failed\n";
output.resize(0);
}
return output;
}
} // namespace auth
} // namespace cipher
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