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Merge pull request #68 from Schaeff/upgrade-libsnark-to-master

Upgrade libsnark to master
This commit is contained in:
Dennis Kuhnert 2018-06-11 14:53:45 +02:00 committed by GitHub
commit bb5d0b4c39
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 347 additions and 326 deletions

383
Cargo.lock generated
View file

@ -8,8 +8,11 @@ dependencies = [
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View file

@ -28,3 +28,4 @@ assert_cli = "0.5"
[build-dependencies]
gcc = "0.3.41"
cmake = "0.1.31"

View file

@ -2,33 +2,37 @@ FROM ubuntu:14.04
MAINTAINER JacobEberhardt <jacob.eberhardt@tu-berlin.de>, Dennis Kuhnert <mail@kyroy.com>
ARG libsnarkcommit=deprecated-master
ARG RUST_TOOLCHAIN=nightly-2018-06-04
ARG LIBSNARK_COMMIT=f7c87b88744ecfd008126d415494d9b34c4c1b20
ENV LIBSNARK_SOURCE_PATH=/root/libsnark-$LIBSNARK_COMMIT
WORKDIR /root
WORKDIR /root/
RUN apt-get update && \
apt-get install -y \
wget unzip curl \
build-essential git libgmp3-dev libprocps3-dev libgtest-dev python-markdown libboost-all-dev libssl-dev
RUN wget https://github.com/scipr-lab/libsnark/archive/$libsnarkcommit.zip \
&& mv $libsnarkcommit.zip libsnark.zip \
&& unzip libsnark.zip \
&& cd libsnark-$libsnarkcommit \
&& ./prepare-depends.sh
RUN apt-get update && apt-get install -y \
build-essential \
cmake \
curl \
libboost-all-dev \
libgmp3-dev \
libprocps3-dev \
libssl-dev \
pkg-config \
python-markdown \
git
RUN curl https://sh.rustup.rs -sSf | \
sh -s -- --default-toolchain nightly-2018-02-10 -y
sh -s -- --default-toolchain $RUST_TOOLCHAIN -y
ENV PATH=/root/.cargo/bin:$PATH
RUN cd libsnark-$libsnarkcommit \
&& make install lib PREFIX=/usr/local \
NO_PROCPS=1 NO_GTEST=1 NO_DOCS=1 CURVE=ALT_BN128 FEATUREFLAGS="-DBINARY_OUTPUT=1 -DMONTGOMERY_OUTPUT=1 -DNO_PT_COMPRESSION=1"
RUN git clone https://github.com/scipr-lab/libsnark.git $LIBSNARK_SOURCE_PATH
WORKDIR $LIBSNARK_SOURCE_PATH
RUN git checkout $LIBSNARK_COMMIT
RUN git submodule update --init --recursive
ENV LD_LIBRARY_PATH $LD_LIBRARY_PATH:/usr/local/lib
WORKDIR /root/
COPY . /root/ZoKrates
COPY . ZoKrates
RUN cd ZoKrates \
&& cargo build --release
&& cargo build --release

6
Jenkinsfile vendored
View file

@ -25,7 +25,7 @@ pipeline {
}
stage('Build') {
steps {
withDockerContainer('kyroy/zokrates-test') {
withDockerContainer('kyroy/zokrates-test:1') {
sh 'RUSTFLAGS="-D warnings" cargo build'
}
}
@ -33,7 +33,7 @@ pipeline {
stage('Test') {
steps {
withDockerContainer('kyroy/zokrates-test') {
withDockerContainer('kyroy/zokrates-test:1') {
sh 'RUSTFLAGS="-D warnings" cargo test'
}
}
@ -44,7 +44,7 @@ pipeline {
expression { env.BRANCH_NAME == 'master' || env.BRANCH_NAME == 'develop' }
}
steps {
withDockerContainer('kyroy/zokrates-test') {
withDockerContainer('kyroy/zokrates-test:1') {
sh 'RUSTFLAGS="-D warnings" cargo test -- --ignored'
}
}

View file

@ -1,23 +1,51 @@
#[cfg(not(feature = "nolibsnark"))]
extern crate gcc;
#[cfg(not(feature = "nolibsnark"))]
extern crate cmake;
use std::path::Path;
use std::env;
fn main() {
#[cfg(not(feature = "nolibsnark"))]
{
let libsnark_source_path_string = env::var_os("LIBSNARK_SOURCE_PATH").expect("$LIBSNARK_SOURCE_PATH not set");
let libsnark_source_path = Path::new(&libsnark_source_path_string);
let libsnark = cmake::Config::new(libsnark_source_path)
.define("WITH_PROCPS", "OFF")
.define("CURVE", "ALT_BN128")
.define("USE_PT_COMPRESSION", "OFF")
.define("MONTGOMERY_OUTPUT", "ON")
.define("BINARY_OUTPUT", "ON")
.build();
gcc::Build::new()
.cpp(true)
.debug(true)
.include("/usr/local/include")
.include("/usr/local/include/libsnark")
.debug(cfg!(debug_assertions))
.flag("-std=c++11")
.include(libsnark_source_path)
.include(libsnark_source_path.join("depends/libff"))
.include(libsnark_source_path.join("depends/libfqfft"))
.define("CURVE_ALT_BN128", None)
.file("lib/wraplibsnark.cpp")
.compile("libwraplibsnark.a");
println!(
"cargo:rustc-link-search=native={}",
libsnark.join("lib").display()
);
println!("cargo:rustc-link-lib=gmp");
println!("cargo:rustc-link-lib=gmpxx");
println!("cargo:rustc-link-lib=supercop");
println!("cargo:rustc-link-lib=snark");
println!("cargo:rustc-link-search=/usr/local/lib");
#[cfg(debug_assertions)] {
println!("cargo:rustc-link-lib=static=snarkd");
println!("cargo:rustc-link-lib=static=ffd");
}
#[cfg(not(debug_assertions))] {
println!("cargo:rustc-link-lib=static=snark");
println!("cargo:rustc-link-lib=static=ff");
}
}
}

View file

@ -12,17 +12,19 @@
#include <iomanip>
// contains definition of alt_bn128 ec public parameters
#include "libsnark/algebra/curves/alt_bn128/alt_bn128_pp.hpp"
#include "libff/algebra/curves/alt_bn128/alt_bn128_pp.hpp"
// contains required interfaces and types (keypair, proof, generator, prover, verifier)
#include "libsnark/zk_proof_systems/ppzksnark/r1cs_ppzksnark/r1cs_ppzksnark.hpp"
#include <libsnark/zk_proof_systems/ppzksnark/r1cs_ppzksnark/r1cs_ppzksnark.hpp>
typedef long integer_coeff_t;
using namespace std;
using namespace libsnark;
// conversion byte[32] <-> libsnark bigint.
libsnark::bigint<libsnark::alt_bn128_r_limbs> libsnarkBigintFromBytes(const uint8_t* _x)
libff::bigint<libff::alt_bn128_r_limbs> libsnarkBigintFromBytes(const uint8_t* _x)
{
libsnark::bigint<libsnark::alt_bn128_r_limbs> x;
libff::bigint<libff::alt_bn128_r_limbs> x;
for (unsigned i = 0; i < 4; i++) {
for (unsigned j = 0; j < 8; j++) {
@ -32,50 +34,49 @@ libsnark::bigint<libsnark::alt_bn128_r_limbs> libsnarkBigintFromBytes(const uint
return x;
}
std::string HexStringFromLibsnarkBigint(libsnark::bigint<libsnark::alt_bn128_r_limbs> _x){
uint8_t x[32];
for (unsigned i = 0; i < 4; i++)
for (unsigned j = 0; j < 8; j++)
x[i * 8 + j] = uint8_t(uint64_t(_x.data[3 - i]) >> (8 * (7 - j)));
std::string HexStringFromLibsnarkBigint(libff::bigint<libff::alt_bn128_r_limbs> _x){
uint8_t x[32];
for (unsigned i = 0; i < 4; i++)
for (unsigned j = 0; j < 8; j++)
x[i * 8 + j] = uint8_t(uint64_t(_x.data[3 - i]) >> (8 * (7 - j)));
std::stringstream ss;
ss << std::setfill('0');
for (unsigned i = 0; i<32; i++) {
ss << std::hex << std::setw(2) << (int)x[i];
}
std::stringstream ss;
ss << std::setfill('0');
for (unsigned i = 0; i<32; i++) {
ss << std::hex << std::setw(2) << (int)x[i];
}
std::string str = ss.str();
return str.erase(0, min(str.find_first_not_of('0'), str.size()-1));
}
std::string outputPointG1AffineAsHex(libsnark::alt_bn128_G1 _p)
std::string outputPointG1AffineAsHex(libff::alt_bn128_G1 _p)
{
libsnark::alt_bn128_G1 aff = _p;
aff.to_affine_coordinates();
return
"0x" +
HexStringFromLibsnarkBigint(aff.X.as_bigint()) +
", 0x" +
HexStringFromLibsnarkBigint(aff.Y.as_bigint()) +
"";
libff::alt_bn128_G1 aff = _p;
aff.to_affine_coordinates();
return
"0x" +
HexStringFromLibsnarkBigint(aff.X.as_bigint()) +
", 0x" +
HexStringFromLibsnarkBigint(aff.Y.as_bigint());
}
std::string outputPointG2AffineAsHex(libsnark::alt_bn128_G2 _p)
std::string outputPointG2AffineAsHex(libff::alt_bn128_G2 _p)
{
libsnark::alt_bn128_G2 aff = _p;
aff.to_affine_coordinates();
return
"[0x" +
HexStringFromLibsnarkBigint(aff.X.c1.as_bigint()) + ", 0x" +
HexStringFromLibsnarkBigint(aff.X.c0.as_bigint()) + "], [0x" +
HexStringFromLibsnarkBigint(aff.Y.c1.as_bigint()) + ", 0x" +
HexStringFromLibsnarkBigint(aff.Y.c0.as_bigint()) + "]";
libff::alt_bn128_G2 aff = _p;
aff.to_affine_coordinates();
return
"[0x" +
HexStringFromLibsnarkBigint(aff.X.c1.as_bigint()) + ", 0x" +
HexStringFromLibsnarkBigint(aff.X.c0.as_bigint()) + "], [0x" +
HexStringFromLibsnarkBigint(aff.Y.c1.as_bigint()) + ", 0x" +
HexStringFromLibsnarkBigint(aff.Y.c0.as_bigint()) + "]";
}
//takes input and puts it into constraint system
r1cs_ppzksnark_constraint_system<alt_bn128_pp> createConstraintSystem(const uint8_t* A, const uint8_t* B, const uint8_t* C, int constraints, int variables, int inputs)
r1cs_ppzksnark_constraint_system<libff::alt_bn128_pp> createConstraintSystem(const uint8_t* A, const uint8_t* B, const uint8_t* C, int constraints, int variables, int inputs)
{
r1cs_constraint_system<Fr<alt_bn128_pp> > cs;
r1cs_ppzksnark_constraint_system<libff::alt_bn128_pp> cs;
cs.primary_input_size = inputs;
cs.auxiliary_input_size = variables - inputs - 1; // ~one not included
@ -84,18 +85,19 @@ r1cs_ppzksnark_constraint_system<alt_bn128_pp> createConstraintSystem(const uint
cout << "num inputs: " << inputs <<endl;
for (int row = 0; row < constraints; row++) {
linear_combination<Fr<alt_bn128_pp> > lin_comb_A, lin_comb_B, lin_comb_C;
linear_combination<libff::Fr<libff::alt_bn128_pp> > lin_comb_A, lin_comb_B, lin_comb_C;
for (int idx=0; idx<variables; idx++) {
libsnark::bigint<libsnark::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(A+row*variables*32 + idx*32);
libff::bigint<libff::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(A+row*variables*32 + idx*32);
libff::alt_bn128_pp::init_public_params();
// cout << "C entry " << idx << " in row " << row << ": " << value << endl;
if (!value.is_zero()) {
// cout << "A(" << idx << ", " << value << ")" << endl;
lin_comb_A.add_term(idx, value);
lin_comb_A.add_term(idx,value);
}
}
for (int idx=0; idx<variables; idx++) {
libsnark::bigint<libsnark::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(B+row*variables*32 + idx*32);
libff::bigint<libff::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(B+row*variables*32 + idx*32);
// cout << "B entry " << idx << " in row " << row << ": " << value << endl;
if (!value.is_zero()) {
// cout << "B(" << idx << ", " << value << ")" << endl;
@ -103,23 +105,22 @@ r1cs_ppzksnark_constraint_system<alt_bn128_pp> createConstraintSystem(const uint
}
}
for (int idx=0; idx<variables; idx++) {
libsnark::bigint<libsnark::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(C+row*variables*32 + idx*32);
libff::bigint<libff::alt_bn128_r_limbs> value = libsnarkBigintFromBytes(C+row*variables*32 + idx*32);
// cout << "C entry " << idx << " in row " << row << ": " << value << endl;
if (!value.is_zero()) {
// cout << "C(" << idx << ", " << value << ")" << endl;
lin_comb_C.add_term(idx, value);
}
}
cs.add_constraint(r1cs_constraint<Fr<alt_bn128_pp> >(lin_comb_A, lin_comb_B, lin_comb_C));
cs.add_constraint(r1cs_constraint<libff::Fr<libff::alt_bn128_pp> >(lin_comb_A, lin_comb_B, lin_comb_C));
}
return cs;
}
// keypair generateKeypair(constraints)
r1cs_ppzksnark_keypair<alt_bn128_pp> generateKeypair(const r1cs_ppzksnark_constraint_system<alt_bn128_pp> &cs){
r1cs_ppzksnark_keypair<libff::alt_bn128_pp> generateKeypair(const r1cs_ppzksnark_constraint_system<libff::alt_bn128_pp> &cs){
// from r1cs_ppzksnark.hpp
return r1cs_ppzksnark_generator<alt_bn128_pp>(cs);
return r1cs_ppzksnark_generator<libff::alt_bn128_pp>(cs);
}
template<typename T>
@ -152,15 +153,15 @@ T loadFromFile(std::string path) {
return obj;
}
void serializeProvingKeyToFile(r1cs_ppzksnark_proving_key<alt_bn128_pp> pk, const char* pk_path){
void serializeProvingKeyToFile(r1cs_ppzksnark_proving_key<libff::alt_bn128_pp> pk, const char* pk_path){
writeToFile(pk_path, pk);
}
r1cs_ppzksnark_proving_key<alt_bn128_pp> deserializeProvingKeyFromFile(const char* pk_path){
return loadFromFile<r1cs_ppzksnark_proving_key<alt_bn128_pp>>(pk_path);
r1cs_ppzksnark_proving_key<libff::alt_bn128_pp> deserializeProvingKeyFromFile(const char* pk_path){
return loadFromFile<r1cs_ppzksnark_proving_key<libff::alt_bn128_pp>>(pk_path);
}
void serializeVerificationKeyToFile(r1cs_ppzksnark_verification_key<alt_bn128_pp> vk, const char* vk_path){
void serializeVerificationKeyToFile(r1cs_ppzksnark_verification_key<libff::alt_bn128_pp> vk, const char* vk_path){
std::stringstream ss;
unsigned icLength = vk.encoded_IC_query.rest.indices.size() + 1;
@ -189,69 +190,67 @@ void serializeVerificationKeyToFile(r1cs_ppzksnark_verification_key<alt_bn128_pp
}
// compliant with solidty verification example
void exportVerificationKey(r1cs_ppzksnark_keypair<alt_bn128_pp> keypair){
unsigned icLength = keypair.vk.encoded_IC_query.rest.indices.size() + 1;
void exportVerificationKey(r1cs_ppzksnark_keypair<libff::alt_bn128_pp> keypair){
unsigned icLength = keypair.vk.encoded_IC_query.rest.indices.size() + 1;
cout << "\tVerification key in Solidity compliant format:{" << endl;
cout << "\t\tvk.A = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.alphaA_g2) << ");" << endl;
cout << "\t\tvk.B = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.alphaB_g1) << ");" << endl;
cout << "\t\tvk.C = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.alphaC_g2) << ");" << endl;
cout << "\t\tvk.gamma = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.gamma_g2) << ");" << endl;
cout << "\t\tvk.gammaBeta1 = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.gamma_beta_g1) << ");" << endl;
cout << "\t\tvk.gammaBeta2 = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.gamma_beta_g2) << ");" << endl;
cout << "\t\tvk.Z = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.rC_Z_g2) << ");" << endl;
cout << "\t\tvk.IC = new Pairing.G1Point[](" << icLength << ");" << endl;
cout << "\t\tvk.IC[0] = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.encoded_IC_query.first) << ");" << endl;
for (size_t i = 1; i < icLength; ++i)
{
auto vkICi = outputPointG1AffineAsHex(keypair.vk.encoded_IC_query.rest.values[i - 1]);
cout << "\t\tvk.IC[" << i << "] = Pairing.G1Point(" << vkICi << ");" << endl;
}
cout << "\t\t}" << endl;
cout << "\tVerification key in Solidity compliant format:{" << endl;
cout << "\t\tvk.A = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.alphaA_g2) << ");" << endl;
cout << "\t\tvk.B = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.alphaB_g1) << ");" << endl;
cout << "\t\tvk.C = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.alphaC_g2) << ");" << endl;
cout << "\t\tvk.gamma = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.gamma_g2) << ");" << endl;
cout << "\t\tvk.gammaBeta1 = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.gamma_beta_g1) << ");" << endl;
cout << "\t\tvk.gammaBeta2 = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.gamma_beta_g2) << ");" << endl;
cout << "\t\tvk.Z = Pairing.G2Point(" << outputPointG2AffineAsHex(keypair.vk.rC_Z_g2) << ");" << endl;
cout << "\t\tvk.IC = new Pairing.G1Point[](" << icLength << ");" << endl;
cout << "\t\tvk.IC[0] = Pairing.G1Point(" << outputPointG1AffineAsHex(keypair.vk.encoded_IC_query.first) << ");" << endl;
for (size_t i = 1; i < icLength; ++i)
{
auto vkICi = outputPointG1AffineAsHex(keypair.vk.encoded_IC_query.rest.values[i - 1]);
cout << "\t\tvk.IC[" << i << "] = Pairing.G1Point(" << vkICi << ");" << endl;
}
cout << "\t\t}" << endl;
}
// compliant with solidty verification example
void exportInput(r1cs_primary_input<Fr<alt_bn128_pp>> input){
cout << "\tInput in Solidity compliant format:{" << endl;
for (size_t i = 0; i < input.size(); ++i)
{
cout << "\t\tinput[" << i << "] = " << HexStringFromLibsnarkBigint(input[i].as_bigint()) << ";" << endl;
}
cout << "\t\t}" << endl;
}
void exportInput(r1cs_primary_input<libff::Fr<libff::alt_bn128_pp>> input){
cout << "\tInput in Solidity compliant format:{" << endl;
for (size_t i = 0; i < input.size(); ++i)
{
cout << "\t\tinput[" << i << "] = " << HexStringFromLibsnarkBigint(input[i].as_bigint()) << ";" << endl;
}
cout << "\t\t}" << endl;
}
void printProof(r1cs_ppzksnark_proof<alt_bn128_pp> proof){
void printProof(r1cs_ppzksnark_proof<libff::alt_bn128_pp> proof){
cout << "Proof:"<< endl;
cout << "A = " << outputPointG1AffineAsHex(proof.g_A.g)<< endl;
cout << "A_p = " << outputPointG1AffineAsHex(proof.g_A.h)<< endl;
cout << "B = " << outputPointG2AffineAsHex(proof.g_B.g)<< endl;
cout << "B_p = " << outputPointG1AffineAsHex(proof.g_B.h)<< endl;
cout << "C = " << outputPointG1AffineAsHex(proof.g_C.g)<< endl;
cout << "C_p = " << outputPointG1AffineAsHex(proof.g_C.h)<< endl;
cout << "H = " << outputPointG1AffineAsHex(proof.g_H)<< endl;
cout << "K = " << outputPointG1AffineAsHex(proof.g_K)<< endl;
cout << "A = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_A.g)<< ");" << endl;
cout << "A_p = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_A.h)<< ");" << endl;
cout << "B = Pairing.G2Point(" << outputPointG2AffineAsHex(proof.g_B.g)<< ");" << endl;
cout << "B_p = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_B.h)<<");" << endl;
cout << "C = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_C.g)<< ");" << endl;
cout << "C_p = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_C.h)<<");" << endl;
cout << "H = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_H)<<");"<< endl;
cout << "K = Pairing.G1Point(" << outputPointG1AffineAsHex(proof.g_K)<<");"<< endl;
}
bool _setup(const uint8_t* A, const uint8_t* B, const uint8_t* C, int constraints, int variables, int inputs, const char* pk_path, const char* vk_path)
{
libsnark::inhibit_profiling_info = true;
libsnark::inhibit_profiling_counters = true;
libff::inhibit_profiling_info = true;
libff::inhibit_profiling_counters = true;
//initialize curve parameters
alt_bn128_pp::init_public_params();
libff::alt_bn128_pp::init_public_params();
r1cs_constraint_system<Fr<alt_bn128_pp>> cs;
cs = createConstraintSystem(A, B ,C , constraints, variables, inputs);
auto cs = createConstraintSystem(A, B ,C , constraints, variables, inputs);
assert(cs.num_variables() >= (unsigned)inputs);
assert(cs.num_inputs() == (unsigned)inputs);
assert(cs.num_constraints() == (unsigned)constraints);
// create keypair
r1cs_ppzksnark_keypair<alt_bn128_pp> keypair = r1cs_ppzksnark_generator<alt_bn128_pp>(cs);
auto keypair = r1cs_ppzksnark_generator<libff::alt_bn128_pp>(cs);
// Export vk and pk to files
serializeProvingKeyToFile(keypair.pk, pk_path);
@ -265,26 +264,26 @@ bool _setup(const uint8_t* A, const uint8_t* B, const uint8_t* C, int constraint
bool _generate_proof(const char* pk_path, const uint8_t* public_inputs, int public_inputs_length, const uint8_t* private_inputs, int private_inputs_length)
{
libsnark::inhibit_profiling_info = true;
libsnark::inhibit_profiling_counters = true;
libff::inhibit_profiling_info = true;
libff::inhibit_profiling_counters = true;
//initialize curve parameters
alt_bn128_pp::init_public_params();
r1cs_ppzksnark_proving_key<alt_bn128_pp> pk = deserializeProvingKeyFromFile(pk_path);
libff::alt_bn128_pp::init_public_params();
auto pk = deserializeProvingKeyFromFile(pk_path);
// assign variables based on witness values, excludes ~one
r1cs_variable_assignment<Fr<alt_bn128_pp> > full_variable_assignment;
r1cs_variable_assignment<libff::Fr<libff::alt_bn128_pp> > full_variable_assignment;
for (int i = 1; i < public_inputs_length; i++) {
full_variable_assignment.push_back(Fr<alt_bn128_pp>(libsnarkBigintFromBytes(public_inputs + i*32)));
full_variable_assignment.push_back(libff::Fr<libff::alt_bn128_pp>(libsnarkBigintFromBytes(public_inputs + i*32)));
}
for (int i = 0; i < private_inputs_length; i++) {
full_variable_assignment.push_back(Fr<alt_bn128_pp>(libsnarkBigintFromBytes(private_inputs + i*32)));
full_variable_assignment.push_back(libff::Fr<libff::alt_bn128_pp>(libsnarkBigintFromBytes(private_inputs + i*32)));
}
// split up variables into primary and auxiliary inputs. Does *NOT* include the constant 1 */
// split up variables into primary and auxiliary inputs. Does *NOT* include the constant 1
// Public variables belong to primary input, private variables are auxiliary input.
r1cs_primary_input<Fr<alt_bn128_pp>> primary_input(full_variable_assignment.begin(), full_variable_assignment.begin() + public_inputs_length-1);
r1cs_primary_input<Fr<alt_bn128_pp>> auxiliary_input(full_variable_assignment.begin() + public_inputs_length-1, full_variable_assignment.end());
r1cs_primary_input<libff::Fr<libff::alt_bn128_pp>> primary_input(full_variable_assignment.begin(), full_variable_assignment.begin() + public_inputs_length-1);
r1cs_primary_input<libff::Fr<libff::alt_bn128_pp>> auxiliary_input(full_variable_assignment.begin() + public_inputs_length-1, full_variable_assignment.end());
// for debugging
// cout << "full variable assignment:"<< endl << full_variable_assignment;
@ -292,11 +291,11 @@ bool _generate_proof(const char* pk_path, const uint8_t* public_inputs, int publ
// cout << "auxiliary input:"<< endl << auxiliary_input;
// Proof Generation
r1cs_ppzksnark_proof<alt_bn128_pp> proof = r1cs_ppzksnark_prover<alt_bn128_pp>(pk, primary_input, auxiliary_input);
auto proof = r1cs_ppzksnark_prover<libff::alt_bn128_pp>(pk, primary_input, auxiliary_input);
// print proof
printProof(proof);
// TODO? print inputs
return true;
}
}