Initial commit

tinysnark/tinysnark.cpp

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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));
+}