discv4/discv4_packet.cpp

Namespaces

Name
discv4

Source code

// discv4_packet.cpp
#include "discv4/discv4_packet.hpp"
#include <utility>

#include <nil/crypto3/hash/algorithm/hash.hpp>
#include <nil/crypto3/hash/keccak.hpp>

namespace discv4 {

discv4_packet::discv4_packet( uint8_t packetType, uint8_t version, std::string name )
    : packetType_( packetType ), version_( version ), name_( std::move( name ) ) {}

// ----------------------------
//  Keccak256 (using nil::crypto3)
// ----------------------------
std::array<uint8_t, kWireHashSize> discv4_packet::Keccak256( const std::vector<uint8_t>& payload )
{
    auto hash = nil::crypto3::hash<nil::crypto3::hashes::keccak_1600<256>>( payload.cbegin(), payload.cend() );
    std::array<uint8_t, kWireHashSize> hashArray = hash;
    return hashArray;
}

// ----------------------------
//  ValidateHash
// ----------------------------
bool discv4_packet::ValidateHash( const std::vector<uint8_t>& payload, const uint8_t* hash )
{
    std::array<uint8_t, kWireHashSize> computed = Keccak256( payload );
    return std::equal( computed.begin(), computed.end(), hash );
}

} // namespace discv4

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Updated on 2026-04-13 at 23:22:46 -0700