HashAlgorithm.h

#ifndef TENDUKE_CRYPTO_HASHALGORITHM_H
#define TENDUKE_CRYPTO_HASHALGORITHM_H
 
#include <cstdint>
#include <string>
 
namespace tenduke { namespace crypto {

enum class HashAlgorithm : std::int16_t
{
    UNKNOWN = -1,
    NONE = 0,
    SHA256 = 1
};

constexpr  std::size_t SHA256_HASH_LENGTH_BYTES = 32;

inline HashAlgorithm toHashAlgorithm(const std::string &algorithm)
{
    if (algorithm == "SHA256") {
        return HashAlgorithm::SHA256;
    }
    if (algorithm == "NONE") {
        return HashAlgorithm::NONE;
    }
    return HashAlgorithm::UNKNOWN;
}

inline const char * toString(const HashAlgorithm algorithm)
{
    switch (algorithm) {
        case HashAlgorithm::SHA256:
            return "SHA256";
        case HashAlgorithm::NONE:
            return "NONE";
        default:
            return "UNKNOWN";
    }
}
 
}}
 
#endif //TENDUKE_CRYPTO_HASHALGORITHM_H