src/drift/sodium/hash.h

//@[email protected]@
/***********************************************************************\
|                    Drift Standard Libraries v1.01                     |
|            Copyright 2010-2020 Drift Solutions / Indy Sams            |
| Docs and more information available at https://www.driftsolutions.dev |
|          This file released under the 3-clause BSD license,           |
|            see included DSL.LICENSE.TXT file for details.             |
\***********************************************************************/
//@[email protected]@

#ifndef __DSL_SODIUM_HASH__
#define __DSL_SODIUM_HASH__

#define HASH_SIZE_BYTES (crypto_generichash_BYTES)

class DSL_SODIUM_API_CLASS DS_Hash {
public:
        uint8_t hash[HASH_SIZE_BYTES];

        DS_Hash();

        vector<uint8_t> GetVector();

        void SetNull();
        bool IsNull();
        bool IsValid();

        bool SetFromHexString(string str);
        bool SetFromBinaryData(uint8_t * p_hash, size_t len);

        bool operator == (const DS_Hash &b) const {
                return (memcmp(hash, b.hash, HASH_SIZE_BYTES) == 0) ? true : false;
        }
        bool operator != (const DS_Hash &b) const {
                return (memcmp(hash, b.hash, HASH_SIZE_BYTES) != 0) ? true : false;
        }
        bool operator < (const DS_Hash &b) const {
                if (memcmp(hash, b.hash, HASH_SIZE_BYTES) < 0) {
                        return true;
                }
                return false;
        }
};
extern DSL_SODIUM_API_CLASS DS_Hash null_hash;

class DSL_SODIUM_API_CLASS DS_Hasher : public DS_Hash {
public:

        DS_Hasher();
        DS_Hasher(const uint8_t * data, size_t len);
        DS_Hasher(vector<uint8_t>& data);

        DS_Hash HashData(const uint8_t * data, size_t len);
        DS_Hash HashData(vector<uint8_t>& data);
};

#endif // __DSL_SODIUM_HASH__

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