feat: witness solver on alt_bn128 circuit with optimization enabled

This commit is contained in:
vimwitch
2024-12-11 11:04:28 -08:00
parent c426911f1f
commit b7331b869c
10 changed files with 316 additions and 403 deletions

9
package-lock.json generated
View File

@@ -10,7 +10,7 @@
"license": "MIT",
"dependencies": {
"rstark": "../rstark/pkg",
"starkstark": "vimwitch/starkstark#main"
"starkstark": "chancehudson/starkstark#main"
},
"devDependencies": {
"ava": "^5.3.1",
@@ -1390,8 +1390,7 @@
},
"node_modules/starkstark": {
"version": "0.0.0",
"resolved": "git+ssh://git@github.com/vimwitch/starkstark.git#683bf06ef15882a67f86a26a33efedc5055df885",
"license": "ISC",
"resolved": "git+ssh://git@github.com/chancehudson/starkstark.git#63b80fa5d061670f387a6494f1f648bc29aab3cf",
"dependencies": {
"@noble/hashes": "^1.3.1",
"randomf": "^0.0.3"
@@ -2452,8 +2451,8 @@
}
},
"starkstark": {
"version": "git+ssh://git@github.com/vimwitch/starkstark.git#683bf06ef15882a67f86a26a33efedc5055df885",
"from": "starkstark@vimwitch/starkstark#main",
"version": "git+ssh://git@github.com/chancehudson/starkstark.git#63b80fa5d061670f387a6494f1f648bc29aab3cf",
"from": "starkstark@chancehudson/starkstark#main",
"requires": {
"@noble/hashes": "^1.3.1",
"randomf": "^0.0.3"

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@@ -4,11 +4,11 @@
"description": "",
"main": "index.js",
"scripts": {
"test": "ava --timeout 200000"
"test": "ava ./test/exampleR1cs.test.mjs --timeout 200000"
},
"dependencies": {
"rstark": "../rstark/pkg",
"starkstark": "vimwitch/starkstark#main"
"starkstark": "chancehudson/starkstark#main"
},
"author": "",
"license": "MIT",

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@@ -1,20 +1,17 @@
import { ScalarField } from 'starkstark/src/ScalarField.mjs'
import { R1CS } from '../src/r1csParser.mjs'
import { buildWitness } from './witnessBuilder.mjs'
import { ScalarField } from "starkstark/src/ScalarField.mjs";
import { R1CS } from "../src/r1csParser.mjs";
import { buildWitness } from "./witnessBuilder.mjs";
export async function compileR1cs(buffer, input = [], memoryOverride) {
const r = new R1CS(buffer)
const {
prime,
constraints,
nOutputs,
nPubInputs,
nPrvInputs,
nVars
} = r.data
const baseField = new ScalarField(prime)
const memory = memoryOverride ? memoryOverride : (await buildWitness(r.data, input))
const negOne = baseField.neg(1n)
const r = new R1CS(buffer);
const { prime, constraints, nOutputs, nPubInputs, nPrvInputs, nVars } =
r.data;
const baseField = new ScalarField(prime);
const memory = memoryOverride
? memoryOverride
: await buildWitness(r.data, input);
return;
const negOne = baseField.neg(1n);
// order of variables
// ONE, outputs, pub inputs, prv inputs
// for all entries in the r1cs we must prove that ab - c = 0
@@ -23,30 +20,30 @@ export async function compileR1cs(buffer, input = [], memoryOverride) {
// variables are laid out in memory from 0-(nVars-1)
// after that are scratch0, scratch1, scratch2, scratch3
const scratch0 = `0x${nVars.toString(16)}`
const scratch1 = `0x${(nVars+1).toString(16)}`
const scratch2 = `0x${(nVars+2).toString(16)}`
const scratch3 = `0x${(nVars+3).toString(16)}`
const scratch0 = `0x${nVars.toString(16)}`;
const scratch1 = `0x${(nVars + 1).toString(16)}`;
const scratch2 = `0x${(nVars + 2).toString(16)}`;
const scratch3 = `0x${(nVars + 3).toString(16)}`;
const asm = []
const asm = [];
for (const [i, v] of Object.entries(memory)) {
asm.push(`set 0x${i.toString(16)} ${v}`)
asm.push(`set 0x${i.toString(16)} ${v}`);
}
for (const [a, b, c] of constraints) {
// each are objects
asm.push(...sum(scratch0, scratch1, a, negOne))
asm.push(...sum(scratch0, scratch2, b, negOne))
asm.push(...sum(scratch0, scratch3, c, negOne))
asm.push(...sum(scratch0, scratch1, a, negOne));
asm.push(...sum(scratch0, scratch2, b, negOne));
asm.push(...sum(scratch0, scratch3, c, negOne));
asm.push(`mul ${scratch0} ${scratch1} ${scratch2}`)
asm.push(`set ${scratch1} 0`)
asm.push(`neg ${scratch3} ${scratch3}`)
asm.push(`add ${scratch0} ${scratch0} ${scratch3}`)
asm.push(`eq ${scratch0} ${scratch1}`)
asm.push(`mul ${scratch0} ${scratch1} ${scratch2}`);
asm.push(`set ${scratch1} 0`);
asm.push(`neg ${scratch3} ${scratch3}`);
asm.push(`add ${scratch0} ${scratch0} ${scratch3}`);
asm.push(`eq ${scratch0} ${scratch1}`);
}
console.log(`Proving ${asm.length} steps with ${memory.length} memory slots`)
await new Promise(r => setTimeout(r, 100))
return asm.join('\n')
console.log(`Proving ${asm.length} steps with ${memory.length} memory slots`);
await new Promise((r) => setTimeout(r, 100));
return asm.join("\n");
}
// mulsum - multiply 2 numbers and add them to a third register
@@ -54,21 +51,20 @@ export async function compileR1cs(buffer, input = [], memoryOverride) {
function sum(scratch0, scratch, map, negOne) {
if (Object.keys(map).length === 0) {
return [`set ${scratch} 0`]
return [`set ${scratch} 0`];
}
const out = []
out.push(`set ${scratch} 0`)
const out = [];
out.push(`set ${scratch} 0`);
for (let x = 0; x < Object.keys(map).length; x++) {
const key = Object.keys(map)[x]
const val = map[key]
const key = Object.keys(map)[x];
const val = map[key];
if (val !== negOne) {
out.push(`set ${scratch0} ${val}`)
out.push(`mul ${scratch0} ${scratch0} ${key}`)
out.push(`set ${scratch0} ${val}`);
out.push(`mul ${scratch0} ${scratch0} ${key}`);
} else {
out.push(`neg ${scratch0} ${key}`)
out.push(`neg ${scratch0} ${key}`);
}
out.push(`add ${scratch} ${scratch} ${scratch0}`)
out.push(`add ${scratch} ${scratch} ${scratch0}`);
}
return out
return out;
}

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@@ -1,30 +1,29 @@
import { R1CS } from './r1csParser.mjs'
import { buildWitness } from './witnessBuilder.mjs'
import { ScalarField } from 'starkstark/src/ScalarField.mjs'
import { MultiPolynomial } from 'starkstark/src/MultiPolynomial.mjs'
import { R1CS } from "./r1csParser.mjs";
import { buildWitness } from "./witnessBuilder.mjs";
import { ScalarField } from "starkstark/src/ScalarField.mjs";
import { MultiPolynomial } from "starkstark/src/MultiPolynomial.mjs";
// export const field = new ScalarField(18446744069414584321n, 2717n);
export const field = new ScalarField(
18446744069414584321n,
2717n
)
BigInt(
"21888242871839275222246405745257275088548364400416034343698204186575808495617",
),
1n,
);
export function compile(r1csBuffer, input = [], memoryOverride) {
const { data } = new R1CS(r1csBuffer)
const {
prime,
constraints,
nOutputs,
nPubInputs,
nPrvInputs,
nVars
} = data
const { data } = new R1CS(r1csBuffer);
const { prime, constraints, nOutputs, nPubInputs, nPrvInputs, nVars } = data;
if (prime !== field.p) {
throw new Error(`r1cs prime does not match expected value. Got ${prime} expected ${field.p}`)
throw new Error(
`r1cs prime does not match expected value. Got ${prime} expected ${field.p}`,
);
}
const registerCount = nVars
const memory = memoryOverride ?? buildWitness(data, input)
const registerCount = nVars;
const memory = memoryOverride ?? buildWitness(data, input);
// for all r1cs constraints make stark constraints
// using signals in the trace memory
@@ -32,48 +31,61 @@ export function compile(r1csBuffer, input = [], memoryOverride) {
// the prover just supplies the signals as input
// in a single row
//
const variables = Array(1+2*registerCount)
const variables = Array(1 + 2 * registerCount)
.fill()
.map((_, i) => new MultiPolynomial(field).term({ coef: 1n, exps: { [i]: 1n }}))
const cycleIndex = variables[0]
const prevState = variables.slice(1, registerCount+1)
const nextState = variables.slice(1+registerCount)
.map((_, i) =>
new MultiPolynomial(field).term({ coef: 1n, exps: { [i]: 1n } }),
);
const cycleIndex = variables[0];
const prevState = variables.slice(1, registerCount + 1);
const nextState = variables.slice(1 + registerCount);
const zero = new MultiPolynomial(field).term({ coef: 0n, exps: { [0]: 0n }})
const one = new MultiPolynomial(field).term({ coef: 1n, exps: { [0]: 0n }})
const zero = new MultiPolynomial(field).term({ coef: 0n, exps: { [0]: 0n } });
const one = new MultiPolynomial(field).term({ coef: 1n, exps: { [0]: 0n } });
const starkConstraints = []
const starkConstraints = [];
// TODO: form a single constraint using a RLC
// need to sample the input to get the randomness
for (const [a, b, c] of constraints) {
const aPoly = zero.copy()
const aPoly = zero.copy();
for (const [key, value] of Object.entries(a)) {
const coef = new MultiPolynomial(field).term({ coef: value, exps: { [0]: 0n }})
aPoly.add(one.copy().mul(prevState[+key]).mul(coef))
const coef = new MultiPolynomial(field).term({
coef: value,
exps: { [0]: 0n },
});
aPoly.add(one.copy().mul(prevState[+key]).mul(coef));
}
const bPoly = zero.copy()
const bPoly = zero.copy();
for (const [key, value] of Object.entries(b)) {
const coef = new MultiPolynomial(field).term({ coef: value, exps: { [0]: 0n }})
bPoly.add(one.copy().mul(prevState[+key]).mul(coef))
const coef = new MultiPolynomial(field).term({
coef: value,
exps: { [0]: 0n },
});
bPoly.add(one.copy().mul(prevState[+key]).mul(coef));
}
const cPoly = zero.copy()
const cPoly = zero.copy();
for (const [key, value] of Object.entries(c)) {
const coef = new MultiPolynomial(field).term({ coef: value, exps: { [0]: 0n }})
cPoly.add(one.copy().mul(prevState[+key]).mul(coef))
const coef = new MultiPolynomial(field).term({
coef: value,
exps: { [0]: 0n },
});
cPoly.add(one.copy().mul(prevState[+key]).mul(coef));
}
starkConstraints.push(aPoly.copy().mul(bPoly).sub(cPoly))
starkConstraints.push(aPoly.copy().mul(bPoly).sub(cPoly));
}
// where in the memory the public inputs start
const pubInputsOffset = 1 + nOutputs
const pubInputsOffset = 1 + nOutputs;
return {
constraints: starkConstraints,
boundary: memory.slice(pubInputsOffset, pubInputsOffset+nPubInputs).map((val, i) => [1, i+pubInputsOffset, val]),
boundary: memory
.slice(pubInputsOffset, pubInputsOffset + nPubInputs)
.map((val, i) => [1, i + pubInputsOffset, val]),
trace: [memory, memory],
program: {
registerCount,
}
}
},
};
}

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@@ -1,6 +1,6 @@
import { ScalarField } from 'starkstark/src/ScalarField.mjs'
import { MultiPolynomial } from 'starkstark/src/MultiPolynomial.mjs'
import { Polynomial } from 'starkstark/src/Polynomial.mjs'
import { ScalarField } from "starkstark/src/ScalarField.mjs";
import { MultiPolynomial } from "starkstark/src/MultiPolynomial.mjs";
import { Polynomial } from "starkstark/src/Polynomial.mjs";
// data: the parsed R1CS data
// input: the private and public input values, in that order
@@ -11,144 +11,143 @@ import { Polynomial } from 'starkstark/src/Polynomial.mjs'
// TODO: exploit structure of the constraint to solve more efficiently
// when possible
export function buildWitness(data, input = []) {
const baseField = new ScalarField(data.prime)
const {
nOutputs,
nPubInputs,
nPrvInputs,
nVars
} = data
const vars = Array(nVars).fill(null)
vars[0] = 1n
const baseField = new ScalarField(data.prime);
const { nOutputs, nPubInputs, nPrvInputs, nVars } = data;
// console.log(data);
const vars = Array(nVars).fill(null);
vars[0] = 1n;
for (let x = 0; x < nPubInputs + nPrvInputs; x++) {
vars[1+nOutputs+x] = input[x]
vars[1 + nOutputs + x] = input[x];
}
const constraints = []
const constraints = [];
// turn the raw constraints into multivariate polynomials
for (const constraint of data.constraints) {
const [a, b, c] = constraint
const polyA = new MultiPolynomial(baseField)
const [a, b, c] = constraint;
const polyA = new MultiPolynomial(baseField);
for (const [key, val] of Object.entries(a)) {
polyA.term({ coef: val, exps: { [Number(key)]: 1n } })
polyA.term({ coef: val, exps: { [Number(key)]: 1n } });
}
const polyB = new MultiPolynomial(baseField)
const polyB = new MultiPolynomial(baseField);
for (const [key, val] of Object.entries(b)) {
polyB.term({ coef: val, exps: { [Number(key)]: 1n } })
polyB.term({ coef: val, exps: { [Number(key)]: 1n } });
}
const polyC = new MultiPolynomial(baseField)
const polyC = new MultiPolynomial(baseField);
for (const [key, val] of Object.entries(c)) {
polyC.term({ coef: val, exps: { [Number(key)]: 1n } })
polyC.term({ coef: val, exps: { [Number(key)]: 1n } });
}
const finalPoly = polyA.copy().mul(polyB).sub(polyC)
finalPoly.originalConstraint = constraint
constraints.push(finalPoly)
const finalPoly = polyA.copy().mul(polyB).sub(polyC);
finalPoly.originalConstraint = constraint;
constraints.push(finalPoly);
}
// build a map of what constraints need what variables
for (const [i, constraint] of Object.entries(constraints)) {
const unknownVars = []
const unknownVarsMap = {}
constraint.vars = []
const [a, b, c] = constraint.originalConstraint
const unknownVars = [];
const unknownVarsMap = {};
constraint.vars = [];
const [a, b, c] = constraint.originalConstraint;
for (const obj of [a, b, c].flat()) {
for (const key of Object.keys(obj)) {
constraint.vars[+key] = true
constraint.vars[+key] = true;
}
}
}
const allConstraints = [...constraints]
const allConstraints = [...constraints];
// iterate over the set of constraints
// look for constraints that have only 1 unknown
// and solve for that unknown
// then iterate again
// repeat until all variables are known
while (vars.indexOf(null) !== -1) {
const solved = []
const solved = [];
// determine what variables are unknown. If there is not
// exactly 1 unknown then skip
for (const [key, constraint] of Object.entries(constraints)) {
const unknownVarsMap = {}
for (const [varIndex, ] of Object.entries(constraint.vars)) {
const unknownVarsMap = {};
for (const [varIndex] of Object.entries(constraint.vars)) {
if (vars[varIndex] === null) {
unknownVarsMap[varIndex] = true
unknownVarsMap[varIndex] = true;
if (Object.keys(unknownVarsMap).length > 1) {
break
break;
}
}
}
const unknownVars = Object.keys(unknownVarsMap).map(v => +v)
if (unknownVars.length >= 2 || unknownVars.length === 0) continue
const unknownVars = Object.keys(unknownVarsMap).map((v) => +v);
if (unknownVars.length >= 2 || unknownVars.length === 0) continue;
// otherwise solve
const cc = constraint.copy()
cc.evaluatePartial(vars)
const cc = constraint.copy();
cc.evaluatePartial(vars);
// we should end up with either
// 0 = x + c
// or
// 0 = x^2 + x
// or a constraint with c = 0
// in which case we solve a and b
let out
let out;
if (cc.expMap.size === 3) {
const [a, b, c] = constraint.originalConstraint
const [a, b, c] = constraint.originalConstraint;
// check that c = 0
if (Object.keys(c).length !== 0) {
throw new Error('expected c = 0 in quadratic polynomial constraint')
throw new Error("expected c = 0 in quadratic polynomial constraint");
}
// solve for the unknown in a and b
const polyA = new Polynomial(baseField)
const polyB = new Polynomial(baseField)
const polyA = new Polynomial(baseField);
const polyB = new Polynomial(baseField);
for (const [key, val] of Object.entries(a)) {
if (+unknownVars[0] === +key) {
polyA.term({ coef: val, exp: 1n })
polyA.term({ coef: val, exp: 1n });
} else {
polyA.term({ coef: baseField.mul(val, vars[+key]), exp: 0n })
polyA.term({ coef: baseField.mul(val, vars[+key]), exp: 0n });
}
}
for (const [key, val] of Object.entries(b)) {
if (+unknownVars[0] === +key) {
polyB.term({ coef: val, exp: 1n })
polyB.term({ coef: val, exp: 1n });
} else {
polyB.term({ coef: baseField.mul(val, vars[+key]), exp: 0n })
polyB.term({ coef: baseField.mul(val, vars[+key]), exp: 0n });
}
}
out = polyA.solve() ?? polyB.solve()
out = polyA.solve() ?? polyB.solve();
} else {
const _expKey = Array(unknownVars[0]).fill(0n)
_expKey.push(1n)
const expKey = MultiPolynomial.expVectorToString(_expKey)
const _expKey = Array(unknownVars[0]).fill(0n);
_expKey.push(1n);
const expKey = MultiPolynomial.expVectorToString(_expKey);
if (cc.expMap.size !== 2) {
continue
throw new Error('expected exactly 2 remaining terms')
continue;
throw new Error("expected exactly 2 remaining terms");
}
if (!cc.expMap.has(expKey)) {
throw new Error('cannot find remaining variable')
throw new Error("cannot find remaining variable");
}
if (cc.expMap.has(expKey.replace('1', '2'))) {
if (cc.expMap.has(expKey.replace("1", "2"))) {
// we're in the case of 0 = x^2 + x
// reduce by dividing an x out
cc.expMap.set('0', cc.expMap.get(expKey))
cc.expMap.set(expKey, cc.expMap.get(expKey.replace('1', '2')))
cc.expMap.delete(expKey.replace('1', '2'))
cc.expMap.set("0", cc.expMap.get(expKey));
cc.expMap.set(expKey, cc.expMap.get(expKey.replace("1", "2")));
cc.expMap.delete(expKey.replace("1", "2"));
}
if (!cc.expMap.has('0')) {
throw new Error('exactly one term should be a constant')
if (!cc.expMap.has("0")) {
throw new Error("exactly one term should be a constant");
}
out = cc.field.div(cc.field.neg(cc.expMap.get('0')), cc.expMap.get(expKey))
out = cc.field.div(
cc.field.neg(cc.expMap.get("0")),
cc.expMap.get(expKey),
);
}
vars[unknownVars[0]] = out
solved.push(constraint)
vars[unknownVars[0]] = out;
solved.push(constraint);
}
for (const c of solved) {
const i = constraints.indexOf(c)
constraints.splice(i, 1)
const i = constraints.indexOf(c);
constraints.splice(i, 1);
}
if (solved.length === 0)
throw new Error('Unable to solve for remaining variables')
throw new Error("Unable to solve for remaining variables");
}
// attempt to evaluate the constraints using the provided inputs
for (const c of allConstraints) {
if (c.evaluate(vars) !== 0n) {
throw new Error('invalid inputs')
throw new Error("invalid inputs");
}
}
return vars
return vars;
}

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@@ -1,39 +1,39 @@
import test from 'ava'
import fs from 'fs/promises'
import path from 'path'
import { fileURLToPath } from 'url'
import { compile, buildTrace } from '../src/compiler.mjs'
import * as wasm from 'rstark'
import test from "ava";
import fs from "fs/promises";
import path from "path";
import { fileURLToPath } from "url";
import { compile, buildTrace } from "../src/compiler.mjs";
// import * as wasm from 'rstark'
const __dirname = path.dirname(fileURLToPath(import.meta.url))
const __dirname = path.dirname(fileURLToPath(import.meta.url));
function serializeBigint(v) {
let _v = v
const out = []
let _v = v;
const out = [];
while (_v > 0n) {
out.push(Number(_v & ((1n << 32n) - 1n)))
_v >>= 32n
out.push(Number(_v & ((1n << 32n) - 1n)));
_v >>= 32n;
}
return out
return out;
}
test('should compile and prove example1', async t => {
const asm = await fs.readFile(path.join(__dirname, './example1.asm'))
const compiled = compile(asm.toString())
const trace = buildTrace(compiled.program)
test("should compile and prove example1", async (t) => {
const asm = await fs.readFile(path.join(__dirname, "./example1.asm"));
const compiled = compile(asm.toString());
const trace = buildTrace(compiled.program);
for (const line of trace) {
t.is(line.length, compiled.program.registerCount)
t.is(line.length, compiled.program.registerCount);
}
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: trace.map(t => t.map(v => serializeBigint(v))),
})
wasm.verify(proof, {
trace_len: trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
t.pass()
})
// const proof = wasm.prove({
// transition_constraints: compiled.constraints.map((v) => v.serialize()),
// boundary: compiled.boundary.map((v) => [v[0], v[1], serializeBigint(v[2])]),
// trace: trace.map((t) => t.map((v) => serializeBigint(v))),
// });
// wasm.verify(proof, {
// trace_len: trace.length,
// register_count: compiled.program.registerCount,
// transition_constraints: compiled.constraints.map((v) => v.serialize()),
// boundary: compiled.boundary.map((v) => [v[0], v[1], serializeBigint(v[2])]),
// });
t.pass();
});

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@@ -1,113 +1,20 @@
import test from 'ava'
import { compileR1cs } from '../src/r1csCompiler.mjs'
import * as wasm from 'rstark'
// import { compile, buildTrace } from '../src/compiler.mjs'
import fs from 'fs/promises'
import path from 'path'
import { fileURLToPath } from 'url'
import { compile } from '../src/r1csStark.mjs'
import test from "ava";
import fs from "fs/promises";
import path from "path";
import { fileURLToPath } from "url";
import { buildWitness } from "../src/witnessBuilder.mjs";
import { R1CS } from "../src/r1csParser.mjs";
const __dirname = path.dirname(fileURLToPath(import.meta.url))
const __dirname = path.dirname(fileURLToPath(import.meta.url));
function serializeBigint(v) {
let _v = v
const out = []
while (_v > 0n) {
out.push(Number(_v & ((1n << 32n) - 1n)))
_v >>= 32n
}
return out
}
test.skip('should compile and prove bits r1cs', async () => {
// the number to be bitified, should fit in 60 bits
const input = [100n]
const file = path.join(__dirname, 'bits.r1cs')
const fileData = await fs.readFile(file)
const compiled = compile(fileData.buffer, input)
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: compiled.trace.map(t => t.map(v => serializeBigint(v))),
})
wasm.verify(proof, {
trace_len: compiled.trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
t.pass()
})
test('should compile and prove unirep epoch key r1cs', async t => {
const input = Array(7).fill(0n)
const file = path.join(__dirname, 'epochKeyLite_main.r1cs')
const fileData = await fs.readFile(file)
const compiled = compile(fileData.buffer, input)
const _ = +new Date()
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: compiled.trace.map(t => t.map(v => serializeBigint(v))),
})
// console.log(`proved in ${+new Date() - _} ms`)
wasm.verify(proof, {
trace_len: compiled.trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
t.pass()
})
test('should compile and prove r1cs', async t => {
const input = [
12n,
]
const file = path.join(__dirname, 'example.r1cs')
const fileData = await fs.readFile(file)
const compiled = compile(fileData.buffer, input)
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: compiled.trace.map(t => t.map(v => serializeBigint(v))),
})
wasm.verify(proof, {
trace_len: compiled.trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
t.pass()
})
test('should fail to prove invalid input', async t => {
// if the circuit is properly constrained changing any of these
// values by any amount should cause the proof to fail
const inputMemory = [
1n,
12n,
90n,
11n, // change by 1
1080n
]
const file = path.join(__dirname, 'example.r1cs')
const fileData = await fs.readFile(file)
const compiled = compile(fileData.buffer, null, inputMemory)
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: compiled.trace.map(t => t.map(v => serializeBigint(v))),
})
t.throws(() => {
wasm.verify(proof, {
trace_len: compiled.trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
})
})
test("should compile and prove unirep epoch key r1cs", async (t) => {
const input = Array(7).fill(0n);
const file = path.join(__dirname, "epochKeyLite_main.r1cs");
const fileData = await fs.readFile(file);
// const compiled = compile(fileData.buffer, input);
const { data } = new R1CS(fileData.buffer);
const witness = buildWitness(data, input);
// console.log(witness);
/// TODO: confirm the witness fulfills the r1cs
t.pass();
});

View File

@@ -1,47 +1,47 @@
import test from 'ava'
import { compile, buildTrace, field } from '../src/compiler.mjs'
import * as wasm from 'rstark'
import test from "ava";
import { compile, buildTrace, field } from "../src/compiler.mjs";
// import * as wasm from 'rstark'
function serializeBigint(v) {
let _v = v
const out = []
let _v = v;
const out = [];
while (_v > 0n) {
out.push(Number(_v & ((1n << 32n) - 1n)))
_v >>= 32n
out.push(Number(_v & ((1n << 32n) - 1n)));
_v >>= 32n;
}
return out
return out;
}
async function proveAndVerify(asm, inputs) {
const compiled = compile(asm)
const trace = buildTrace(compiled.program, inputs)
const proof = wasm.prove({
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
trace: trace.map(t => t.map(v => serializeBigint(v))),
})
wasm.verify(proof, {
trace_len: trace.length,
register_count: compiled.program.registerCount,
transition_constraints: compiled.constraints.map(v => v.serialize()),
boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
})
const compiled = compile(asm);
const trace = buildTrace(compiled.program, inputs);
// const proof = wasm.prove({
// transition_constraints: compiled.constraints.map(v => v.serialize()),
// boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
// trace: trace.map(t => t.map(v => serializeBigint(v))),
// })
// wasm.verify(proof, {
// trace_len: trace.length,
// register_count: compiled.program.registerCount,
// transition_constraints: compiled.constraints.map(v => v.serialize()),
// boundary: compiled.boundary.map(v => [v[0], v[1], serializeBigint(v[2])]),
// })
}
test('should set using named value', async t => {
const v = field.random()
test("should set using named value", async (t) => {
const v = field.random();
const asm = `
set 0x0 input1
set 0x1 ${v.toString()}
eq 0x0 0x1
`
`;
await proveAndVerify(asm, {
input1: v
})
t.pass()
})
input1: v,
});
t.pass();
});
test('should add subtract eq', async t => {
test("should add subtract eq", async (t) => {
const asm = `
set 0x0 0x124129821400
set 0x1 0x1247912469
@@ -49,138 +49,138 @@ neg 0x2 0x1
add 0x3 0x0 0x2
add 0x1 0x3 0x1
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should add registers', async t => {
const v1 = field.random()
const v2 = field.random()
const sum = field.add(v1, v2)
test("should add registers", async (t) => {
const v1 = field.random();
const v2 = field.random();
const sum = field.add(v1, v2);
const asm = `
set 0x0 ${v1.toString()}
set 0x1 ${v2.toString()}
add 0x2 0x0 0x1
set 0x3 ${sum.toString()}
eq 0x2 0x3
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should add registers in place', async t => {
const v1 = field.random()
const v2 = field.random()
const sum = field.add(v1, v2)
test("should add registers in place", async (t) => {
const v1 = field.random();
const v2 = field.random();
const sum = field.add(v1, v2);
const asm = `
set 0x0 ${v1.toString()}
set 0x1 ${v2.toString()}
add 0x0 0x0 0x1
set 0x1 ${sum.toString()}
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should check equality of registers', async t => {
test("should check equality of registers", async (t) => {
const asm = `
set 0x0 0x124129821400
set 0x1 0x124129821400
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should fail to prove equality', async t => {
test("should fail to prove equality", async (t) => {
const asm = `
set 0x0 0x124129821400
set 0x1 0x124129821401
eq 0x0 0x1
`
await t.throwsAsync(() => proveAndVerify(asm))
})
`;
await t.throwsAsync(() => proveAndVerify(asm));
});
test('should negate register', async t => {
const v = field.random()
const vNeg = field.neg(v)
test("should negate register", async (t) => {
const v = field.random();
const vNeg = field.neg(v);
const asm = `
set 0x0 ${v.toString()}
set 0x1 ${vNeg.toString()}
neg 0x2 0x0
eq 0x2 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should negate in place', async t => {
const v = field.random()
const vNeg = field.neg(v)
test("should negate in place", async (t) => {
const v = field.random();
const vNeg = field.neg(v);
const asm = `
set 0x0 ${v.toString()}
set 0x1 ${vNeg.toString()}
neg 0x0 0x0
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should multiply registers', async t => {
const v1 = field.random()
const v2 = field.random()
const prod = field.mul(v1, v2)
test("should multiply registers", async (t) => {
const v1 = field.random();
const v2 = field.random();
const prod = field.mul(v1, v2);
const asm = `
set 0x0 ${v1.toString()}
set 0x1 ${v2.toString()}
mul 0x2 0x0 0x1
set 0x3 ${prod.toString()}
eq 0x2 0x3
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should multiply in place', async t => {
const v1 = field.random()
const v2 = field.random()
const prod = field.mul(v1, v2)
test("should multiply in place", async (t) => {
const v1 = field.random();
const v2 = field.random();
const prod = field.mul(v1, v2);
const asm = `
set 0x0 ${v1.toString()}
set 0x1 ${v2.toString()}
mul 0x0 0x0 0x1
set 0x1 ${prod.toString()}
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should mod inverse in place (0x2)', async t => {
const v = field.random()
const vInv = field.inv(v)
test("should mod inverse in place (0x2)", async (t) => {
const v = field.random();
const vInv = field.inv(v);
const asm = `
set 0x0 ${v.toString()}
set 0x1 ${vInv.toString()}
inv 0x2 0x0
eq 0x2 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});
test('should mod inverse in place (0x0)', async t => {
const v = field.random()
const vInv = field.inv(v)
test("should mod inverse in place (0x0)", async (t) => {
const v = field.random();
const vInv = field.inv(v);
const asm = `
set 0x0 ${v.toString()}
set 0x1 ${vInv.toString()}
inv 0x0 0x0
eq 0x0 0x1
`
await proveAndVerify(asm)
t.pass()
})
`;
await proveAndVerify(asm);
t.pass();
});