src/crypto.cpp


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#include "hotstuff/entity.h"
#include "hotstuff/crypto.h"

namespace hotstuff {

secp256k1_context_t secp256k1_default_sign_ctx = new Secp256k1Context(true);
secp256k1_context_t secp256k1_default_verify_ctx = new Secp256k1Context(false);

QuorumCertSecp256k1::QuorumCertSecp256k1(
        const ReplicaConfig &config, const uint256_t &blk_hash):
            QuorumCert(), blk_hash(blk_hash), rids(config.nreplicas) {
    rids.clear();
}
   
bool QuorumCertSecp256k1::verify(const ReplicaConfig &config) {
    if (sigs.size() < config.nmajority) return false;
    for (size_t i = 0; i < rids.size(); i++)
        if (rids.get(i))
        {
            HOTSTUFF_LOG_DEBUG("checking cert(%d), blk_hash=%s",
                                i, get_hex10(blk_hash).c_str());
            if (!sigs[i].verify(blk_hash,
                            static_cast<const PubKeySecp256k1 &>(config.get_pubkey(i)),
                            secp256k1_default_verify_ctx))
            return false;
        }
    return true;
}

}