evidence.h

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/*
-------------------------------------------------------------------------------
                            PLEBBLE
-------------------------------------------------------------------------------
 Copyright (C) 2019-2020 KATLAS Technology. (http://katlastechnology.com)
 Copyright (C) 2017-2020 Marcos Mayorga. (mm@mm-studios.com)
 
 This file is part of our Plebble(R) Platform.
 
 The code below cannot be copied, used for any purpose other than the one
 agreed and/or distributed without the express permission of
 KATLAS Technology.
-------------------------------------------------------------------------------
 
 
*/
#ifndef USGOV_ce0f37979bb3f36a0a0e6be8535da7b8c6bd6728d662a0c6819e31fb2b47c495
#define USGOV_ce0f37979bb3f36a0a0e6be8535da7b8c6bd6728d662a0c6819e31fb2b47c495
 
#include <chrono>
#include <string>
#include <us/gov/crypto/ripemd160.h>
#include <us/gov/crypto/ec.h>
//#include <us/gov/engine/signed_data.h>
 
namespace us{ namespace gov {
namespace relay {
using namespace std;
using namespace chrono;
 
    struct evidence  {
        typedef crypto::ripemd160 hasher_t;
        typedef hasher_t::value_type hash_t;
 
        evidence(int app, uint8_t eid);
        evidence(const evidence&)=delete;
        virtual ~evidence();
        virtual hash_t compute_hash() const=0;
        virtual void hash_data_to_sign(crypto::ec::sigmsg_hasher_t& h) const;
        virtual void hash_data(hasher_t& h) const;
        virtual void to_stream(ostream&os) const;
        virtual string name() const=0;
        static evidence* from_stream(istream&);
        static evidence* from_stream(int appid, uint8_t evid, istream& is);
        static evidence* from_b58(const string& b58);
        static string formatts(uint64_t ts);
        virtual bool verify(ostream&os) const;
        virtual void write_pretty(ostream&) const;
        static void from_stream(evidence&, istream& is);
        static pair<int,uint8_t> extract_instance_id(istream& is);
        void update_ts(const uint64_t& nsecs_in_future=0);
 
        uint64_t ts;
        uint64_t expires;
        int app;
        uint8_t eid;
    };
 
}
}}
 
#endif