tinysnark 0.0.1

Tiny libsnark bindings
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/*
This is a wrapper around libsnark which provides basic R1CS
zk-SNARK support using the ALT_BN128 curve.
*/

#include "gadgetlib1/gadgets/basic_gadgets.hpp"
#include "zk_proof_systems/ppzksnark/r1cs_ppzksnark/r1cs_ppzksnark.hpp"
#include "common/default_types/r1cs_ppzksnark_pp.hpp"
#include "common/utils.hpp"

using namespace libsnark;
using namespace std;

extern "C" void tinysnark_init_public_params() {
    default_r1cs_ppzksnark_pp::init_public_params();
}

extern "C" void tinysnark_test() {
    typedef Fr<default_r1cs_ppzksnark_pp> FieldT;

    protoboard<FieldT> pb;

    linear_combination<FieldT> sum;

    sum = sum + 1;

    pb.add_r1cs_constraint(r1cs_constraint<FieldT>(1, sum, 1), "testing");

    assert(pb.is_satisfied());

    const r1cs_constraint_system<FieldT> constraint_system = pb.get_constraint_system();

    cout << "Number of R1CS constraints: " << constraint_system.num_constraints() << endl;

	auto keypair = r1cs_ppzksnark_generator<default_r1cs_ppzksnark_pp>(constraint_system);

	auto proof = r1cs_ppzksnark_prover<default_r1cs_ppzksnark_pp>(keypair.pk, pb.primary_input(), pb.auxiliary_input());

	r1cs_primary_input<FieldT> input;

	assert(r1cs_ppzksnark_verifier_strong_IC<default_r1cs_ppzksnark_pp>(keypair.vk, input, proof));
}