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#include "auth_algo.hpp"
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/sha.h>
#include <phosphor-logging/log.hpp>
using namespace phosphor::logging;
namespace cipher
{
namespace rakp_auth
{
const std::string userName = "admin";
std::vector<uint8_t>
AlgoSHA1::generateHMAC(const 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)
{
log<level::ERR>("Generate HMAC failed");
output.resize(0);
}
return output;
}
std::vector<uint8_t>
AlgoSHA1::generateICV(const 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)
{
log<level::ERR>("Generate Session Integrity Key failed");
output.resize(0);
}
output.resize(integrityCheckValueLength);
return output;
}
std::vector<uint8_t>
AlgoSHA256::generateHMAC(const std::vector<uint8_t>& input) const
{
std::vector<uint8_t> output(SHA256_DIGEST_LENGTH);
unsigned int mdLen = 0;
if (HMAC(EVP_sha256(), userKey.data(), userKey.size(), input.data(),
input.size(), output.data(), &mdLen) == NULL)
{
log<level::ERR>("Generate HMAC_SHA256 failed");
output.resize(0);
}
return output;
}
std::vector<uint8_t>
AlgoSHA256::generateICV(const std::vector<uint8_t>& input) const
{
std::vector<uint8_t> output(SHA256_DIGEST_LENGTH);
unsigned int mdLen = 0;
if (HMAC(EVP_sha256(), sessionIntegrityKey.data(),
sessionIntegrityKey.size(), input.data(), input.size(),
output.data(), &mdLen) == NULL)
{
log<level::ERR>(
"Generate HMAC_SHA256_128 Integrity Check Value failed");
output.resize(0);
}
output.resize(integrityCheckValueLength);
return output;
}
} // namespace rakp_auth
} // namespace cipher
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