bbapi_schnorr.cpp

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#include "barretenberg/bbapi/bbapi_schnorr.hpp"
 
namespace bb::bbapi {
 
SchnorrComputePublicKey::Response SchnorrComputePublicKey::execute(BB_UNUSED BBApiRequest& request) &&
{
    return { grumpkin::g1::element(grumpkin::g1::one).mul_const_time(private_key).to_affine_const_time() };
}
 
SchnorrConstructSignature::Response SchnorrConstructSignature::execute(BB_UNUSED BBApiRequest& request) &&
{
    grumpkin::g1::affine_element pub_key =
        grumpkin::g1::element(grumpkin::g1::one).mul_const_time(private_key).to_affine_const_time();
    crypto::schnorr_key_pair<grumpkin::fr, grumpkin::g1> key_pair = { private_key, pub_key };
 
    auto sig = crypto::schnorr_construct_signature<grumpkin::fr, grumpkin::g1>(message_field, key_pair);
    crypto::secure_erase_bytes(&key_pair.private_key, sizeof(key_pair.private_key));
 
    return { sig.s, sig.e };
}
 
SchnorrVerifySignature::Response SchnorrVerifySignature::execute(BB_UNUSED BBApiRequest& request) &&
{
    crypto::schnorr_signature sig = { s, e };
 
    bool result = crypto::schnorr_verify_signature<grumpkin::fr, grumpkin::g1>(message_field, public_key, sig);
 
    return { result };
}
 
} // namespace bb::bbapi