compactproofs.cpp

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// Copyright (c) 2022 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#include <avalanche/compactproofs.h>
 
#include <avalanche/proofid.h>
#include <crypto/siphash.h>
 
namespace avalanche {
 
CompactProofs::CompactProofs(
    const RadixTree<const Proof, ProofRadixTreeAdapter> &proofs)
    : CompactProofs() {
    proofs.forEachLeaf([&](auto pLeaf) {
        shortproofids.push_back(getShortID(pLeaf->getId()));
        return true;
    });
}
 
uint64_t CompactProofs::getShortID(const ProofId &proofid) const {
    static_assert(SHORTPROOFIDS_LENGTH == 6,
                  "shortproofids calculation assumes 6-byte shortproofids");
    return SipHashUint256(shortproofidk0, shortproofidk1, proofid) &
           0xffffffffffffL;
}
 
} // namespace avalanche