sha256 with number of bits as a paramter

This commit is contained in:
Jordi Baylina 2019-09-05 16:41:58 +02:00
parent 52a1fb895d
commit 25f392c8ae
No known key found for this signature in database
GPG Key ID: 7480C80C1BE43112
8 changed files with 223 additions and 4934 deletions

View File

@ -0,0 +1,81 @@
include "constants.circom";
include "sha256compression.circom";
template Sha256(nBits) {
signal input in[nBits];
signal output out[256];
var i;
var k;
var nBlocks;
var bitsLastBlock;
nBlocks = ((nBits + 64)\512)+1;
signal paddedIn[nBlocks*512];
for (k=0; k<nBits; k++) {
paddedIn[k] <== in[k];
}
paddedIn[nBits] <== 1;
for (k=nBits+1; k<nBlocks*512-64; k++) {
paddedIn[k] <== 0;
}
for (k = 0; k< 64; k++) {
paddedIn[nBlocks*512 - k -1] <== (nBits >> k)&1;
}
component ha0 = H(0);
component hb0 = H(1);
component hc0 = H(2);
component hd0 = H(3);
component he0 = H(4);
component hf0 = H(5);
component hg0 = H(6);
component hh0 = H(7);
component sha256compression[nBlocks];
for (i=0; i<nBlocks; i++) {
sha256compression[i] = Sha256compression() ;
if (i==0) {
for (k=0; k<32; k++ ) {
sha256compression[i].hin[0*32+k] <== ha0.out[k];
sha256compression[i].hin[1*32+k] <== hb0.out[k];
sha256compression[i].hin[2*32+k] <== hc0.out[k];
sha256compression[i].hin[3*32+k] <== hd0.out[k];
sha256compression[i].hin[4*32+k] <== he0.out[k];
sha256compression[i].hin[5*32+k] <== hf0.out[k];
sha256compression[i].hin[6*32+k] <== hg0.out[k];
sha256compression[i].hin[7*32+k] <== hh0.out[k];
}
} else {
for (k=0; k<32; k++ ) {
sha256compression[i].hin[32*0+k] <== sha256compression[i-1].out[32*0+31-k];
sha256compression[i].hin[32*1+k] <== sha256compression[i-1].out[32*1+31-k];
sha256compression[i].hin[32*2+k] <== sha256compression[i-1].out[32*2+31-k];
sha256compression[i].hin[32*3+k] <== sha256compression[i-1].out[32*3+31-k];
sha256compression[i].hin[32*4+k] <== sha256compression[i-1].out[32*4+31-k];
sha256compression[i].hin[32*5+k] <== sha256compression[i-1].out[32*5+31-k];
sha256compression[i].hin[32*6+k] <== sha256compression[i-1].out[32*6+31-k];
sha256compression[i].hin[32*7+k] <== sha256compression[i-1].out[32*7+31-k];
}
}
for (k=0; k<512; k++) {
sha256compression[i].inp[k] <== paddedIn[i*512+k];
}
}
for (k=0; k<256; k++) {
out[k] <== sha256compression[nBlocks-1].out[k];
}
}

View File

@ -17,6 +17,7 @@
along with circom. If not, see <https://www.gnu.org/licenses/>.
*/
include "constants.circom";
include "sha256compression.circom";
include "../bitify.circom"
@ -25,6 +26,9 @@ template Sha256_2() {
signal input b;
signal output out;
var i;
var k;
component bits2num = Bits2Num(216);
component num2bits[2];
@ -34,9 +38,28 @@ template Sha256_2() {
num2bits[0].in <== a;
num2bits[1].in <== b;
component sha256compression = Sha256compression() ;
var i;
component ha0 = H(0);
component hb0 = H(1);
component hc0 = H(2);
component hd0 = H(3);
component he0 = H(4);
component hf0 = H(5);
component hg0 = H(6);
component hh0 = H(7);
for (k=0; k<32; k++ ) {
sha256compression.hin[0*32+k] <== ha0.out[k];
sha256compression.hin[1*32+k] <== hb0.out[k];
sha256compression.hin[2*32+k] <== hc0.out[k];
sha256compression.hin[3*32+k] <== hd0.out[k];
sha256compression.hin[4*32+k] <== he0.out[k];
sha256compression.hin[5*32+k] <== hf0.out[k];
sha256compression.hin[6*32+k] <== hg0.out[k];
sha256compression.hin[7*32+k] <== hh0.out[k];
}
for (i=0; i<216; i++) {
sha256compression.inp[i] <== num2bits[0].out[215-i];

View File

@ -24,6 +24,7 @@ include "../binsum.circom";
include "sigmaplus.circom";
template Sha256compression() {
signal input hin[256];
signal input inp[512];
signal output out[256];
signal a[65][32];
@ -44,15 +45,6 @@ template Sha256compression() {
component ct_k[64];
for (i=0; i<64; i++) ct_k[i] = K(i);
component ha0 = H(0);
component hb0 = H(1);
component hc0 = H(2);
component hd0 = H(3);
component he0 = H(4);
component hf0 = H(5);
component hg0 = H(6);
component hh0 = H(7);
component t1[64];
for (i=0; i<64; i++) t1[i] = T1();
@ -88,14 +80,14 @@ template Sha256compression() {
}
for (k=0; k<32; k++ ) {
a[0][k] <== ha0.out[k]
b[0][k] <== hb0.out[k]
c[0][k] <== hc0.out[k]
d[0][k] <== hd0.out[k]
e[0][k] <== he0.out[k]
f[0][k] <== hf0.out[k]
g[0][k] <== hg0.out[k]
h[0][k] <== hh0.out[k]
a[0][k] <== hin[k];
b[0][k] <== hin[32*1 + k];
c[0][k] <== hin[32*2 + k];
d[0][k] <== hin[32*3 + k];
e[0][k] <== hin[32*4 + k];
f[0][k] <== hin[32*5 + k];
g[0][k] <== hin[32*6 + k];
h[0][k] <== hin[32*7 + k];
}
for (t = 0; t<64; t++) {
@ -133,21 +125,21 @@ template Sha256compression() {
}
for (k=0; k<32; k++) {
fsum[0].in[0][k] <== ha0.out[k];
fsum[0].in[0][k] <== hin[32*0+k];
fsum[0].in[1][k] <== a[64][k];
fsum[1].in[0][k] <== hb0.out[k];
fsum[1].in[0][k] <== hin[32*1+k];
fsum[1].in[1][k] <== b[64][k];
fsum[2].in[0][k] <== hc0.out[k];
fsum[2].in[0][k] <== hin[32*2+k];
fsum[2].in[1][k] <== c[64][k];
fsum[3].in[0][k] <== hd0.out[k];
fsum[3].in[0][k] <== hin[32*3+k];
fsum[3].in[1][k] <== d[64][k];
fsum[4].in[0][k] <== he0.out[k];
fsum[4].in[0][k] <== hin[32*4+k];
fsum[4].in[1][k] <== e[64][k];
fsum[5].in[0][k] <== hf0.out[k];
fsum[5].in[0][k] <== hin[32*5+k];
fsum[5].in[1][k] <== f[64][k];
fsum[6].in[0][k] <== hg0.out[k];
fsum[6].in[0][k] <== hin[32*6+k];
fsum[6].in[1][k] <== g[64][k];
fsum[7].in[0][k] <== hh0.out[k];
fsum[7].in[0][k] <== hin[32*7+k];
fsum[7].in[1][k] <== h[64][k];
}

4131
test.txt

File diff suppressed because it is too large Load Diff

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@ -1,776 +0,0 @@
{
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"k": "0"
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{
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"33": "7582035475627193640797276505418002166691739036475590846121162698650004832581"
}
],
[
{},
{},
{
"18": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "7801528930831391612913542953849263092120765287178679640990215688947513841260"
}
],
[
{},
{},
{
"19": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "4705897243203718691035604313913899717760209962238015362153877735592901317263"
}
],
[
{},
{},
{
"20": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "11533909001000295577818857040682494493436124051895563619976413559559984357704"
}
],
[
{},
{},
{
"21": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "153240920024090527149238595127650983736082984617707450012091413752625486998"
}
],
[
{},
{},
{
"22": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "4020276081434545615309760015178511782232038136121596626881988383789905359767"
}
],
[
{},
{},
{
"23": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "21605515851820432880964235241069234202284600780825340516808373216881770219365"
}
],
[
{},
{},
{
"24": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "18856460861531942120859708048677603751294231190189224157283439874962410808705"
}
],
[
{},
{},
{
"25": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "13745444942333935831105476262872495530232646590228527111681360848540626474828"
}
],
[
{},
{},
{
"26": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "12593235468414968750242085888471035041062129592669413010808753916989521208231"
}
],
[
{},
{},
{
"27": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "2645068156583085050795409844793952496341966587935372213947442411891928926825"
}
],
[
{},
{},
{
"28": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "18721023485287444620535873833099074300132272004358512346950884094158923211889"
}
],
[
{},
{},
{
"29": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "6271573312546148160329629673815240458676221818610765478794395550121752710497"
}
],
[
{},
{},
{
"30": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "20729133862440981855920571719405839551572203482913253618619962546642052100217"
}
],
[
{},
{},
{
"31": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "5958787406588418500595239545974275039455545059833263445973445578199987122248"
}
],
[
{},
{},
{
"32": "21888242871839275222246405745257275088548364400416034343698204186575808495616",
"33": "6291453822075498887551694851992571215511219854100590306020486222643399599966"
}
]
],
"templates": {
"EscalarMulW4Table": "function(ctx) {\n ctx.setVar(\"dbl\", [], ctx.getVar(\"base\",[]));\n for (ctx.setVar(\"i\", [], \"0\");bigInt(bigInt(ctx.getVar(\"i\",[])).lt(bigInt(bigInt(ctx.getVar(\"k\",[])).mul(bigInt(\"4\")).mod(__P__))) ? 1 : 0).neq(bigInt(0));(ctx.setVar(\"i\", [], bigInt(ctx.getVar(\"i\",[])).add(bigInt(\"1\")).mod(__P__))).add(__P__).sub(bigInt(1)).mod(__P__)) { \n {\n ctx.setVar(\"dbl\", [], ctx.callFunction(\"pointAdd\", [ctx.getVar(\"dbl\",[\"0\"]),ctx.getVar(\"dbl\",[\"1\"]),ctx.getVar(\"dbl\",[\"0\"]),ctx.getVar(\"dbl\",[\"1\"])]));\n }\n\n }\n ctx.setSignal(\"out\", [\"0\",\"0\"], \"0\");\n ctx.assert(ctx.getSignal(\"out\", [\"0\",\"0\"]), \"0\");\n ctx.setSignal(\"out\", [\"0\",\"1\"], \"1\");\n ctx.assert(ctx.getSignal(\"out\", [\"0\",\"1\"]), \"1\");\n for (ctx.setVar(\"i\", [], \"1\");bigInt(bigInt(ctx.getVar(\"i\",[])).lt(bigInt(\"16\")) ? 1 : 0).neq(bigInt(0));(ctx.setVar(\"i\", [], bigInt(ctx.getVar(\"i\",[])).add(bigInt(\"1\")).mod(__P__))).add(__P__).sub(bigInt(1)).mod(__P__)) { \n {\n ctx.setVar(\"p\", [], ctx.callFunction(\"pointAdd\", [ctx.getSignal(\"out\", [bigInt(ctx.getVar(\"i\",[])).add(__P__).sub(bigInt(\"1\")).mod(__P__),\"0\"]),ctx.getSignal(\"out\", [bigInt(ctx.getVar(\"i\",[])).add(__P__).sub(bigInt(\"1\")).mod(__P__),\"1\"]),ctx.getVar(\"dbl\",[\"0\"]),ctx.getVar(\"dbl\",[\"1\"])]));\n ctx.setSignal(\"out\", [ctx.getVar(\"i\",[]),\"0\"], ctx.getVar(\"p\",[\"0\"]));\n ctx.assert(ctx.getSignal(\"out\", [ctx.getVar(\"i\",[]),\"0\"]), ctx.getVar(\"p\",[\"0\"]));\n ctx.setSignal(\"out\", [ctx.getVar(\"i\",[]),\"1\"], ctx.getVar(\"p\",[\"1\"]));\n ctx.assert(ctx.getSignal(\"out\", [ctx.getVar(\"i\",[]),\"1\"]), ctx.getVar(\"p\",[\"1\"]));\n }\n\n }\n}\n",
"Main": "function(ctx) {\n ctx.setVar(\"base\", [], [\"5299619240641551281634865583518297030282874472190772894086521144482721001553\",\"16950150798460657717958625567821834550301663161624707787222815936182638968203\"]);\n for (ctx.setVar(\"i\", [], \"0\");bigInt(bigInt(ctx.getVar(\"i\",[])).lt(bigInt(\"16\")) ? 1 : 0).neq(bigInt(0));(ctx.setVar(\"i\", [], bigInt(ctx.getVar(\"i\",[])).add(bigInt(\"1\")).mod(__P__))).add(__P__).sub(bigInt(1)).mod(__P__)) { \n {\n ctx.setSignal(\"out\", [ctx.getVar(\"i\",[]),\"0\"], bigInt(ctx.getPin(\"escalarMul\", [], \"out\", [ctx.getVar(\"i\",[]),\"0\"])).mul(bigInt(ctx.getSignal(\"in\", []))).mod(__P__));\n ctx.assert(ctx.getSignal(\"out\", [ctx.getVar(\"i\",[]),\"0\"]), bigInt(ctx.getPin(\"escalarMul\", [], \"out\", [ctx.getVar(\"i\",[]),\"0\"])).mul(bigInt(ctx.getSignal(\"in\", []))).mod(__P__));\n ctx.setSignal(\"out\", [ctx.getVar(\"i\",[]),\"1\"], bigInt(ctx.getPin(\"escalarMul\", [], \"out\", [ctx.getVar(\"i\",[]),\"1\"])).mul(bigInt(ctx.getSignal(\"in\", []))).mod(__P__));\n ctx.assert(ctx.getSignal(\"out\", [ctx.getVar(\"i\",[]),\"1\"]), bigInt(ctx.getPin(\"escalarMul\", [], \"out\", [ctx.getVar(\"i\",[]),\"1\"])).mul(bigInt(ctx.getSignal(\"in\", []))).mod(__P__));\n }\n\n }\n}\n"
},
"functions": {
"pointAdd": {
"params": [
"x1",
"y1",
"x2",
"y2"
],
"func": "function(ctx) {\n ctx.setVar(\"a\", [], \"168700\");\n ctx.setVar(\"d\", [], \"168696\");\n ctx.setVar(\"res\", [\"0\"], bigInt(bigInt(bigInt(ctx.getVar(\"x1\",[])).mul(bigInt(ctx.getVar(\"y2\",[]))).mod(__P__)).add(bigInt(bigInt(ctx.getVar(\"y1\",[])).mul(bigInt(ctx.getVar(\"x2\",[]))).mod(__P__))).mod(__P__)).mul( bigInt(bigInt(\"1\").add(bigInt(bigInt(bigInt(bigInt(bigInt(ctx.getVar(\"d\",[])).mul(bigInt(ctx.getVar(\"x1\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"x2\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"y1\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"y2\",[]))).mod(__P__))).mod(__P__)).inverse(__P__) ).mod(__P__));\n ctx.setVar(\"res\", [\"1\"], bigInt(bigInt(bigInt(ctx.getVar(\"y1\",[])).mul(bigInt(ctx.getVar(\"y2\",[]))).mod(__P__)).add(__P__).sub(bigInt(bigInt(bigInt(ctx.getVar(\"a\",[])).mul(bigInt(ctx.getVar(\"x1\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"x2\",[]))).mod(__P__))).mod(__P__)).mul( bigInt(bigInt(\"1\").add(__P__).sub(bigInt(bigInt(bigInt(bigInt(bigInt(ctx.getVar(\"d\",[])).mul(bigInt(ctx.getVar(\"x1\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"x2\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"y1\",[]))).mod(__P__)).mul(bigInt(ctx.getVar(\"y2\",[]))).mod(__P__))).mod(__P__)).inverse(__P__) ).mod(__P__));\n return ctx.getVar(\"res\",[]);;\n}\n"
}
},
"nPrvInputs": 0,
"nPubInputs": 1,
"nInputs": 1,
"nOutputs": 32,
"nVars": 34,
"nConstants": 32,
"nSignals": 66
}

View File

@ -0,0 +1,3 @@
include "../../circuits/sha256/sha256.circom";
component main = Sha256(448);

View File

@ -0,0 +1,3 @@
include "../../circuits/sha256/sha256.circom";
component main = Sha256(512);

View File

@ -12,8 +12,43 @@ const sha256 = require("./helpers/sha256");
// const printSignal = require("./helpers/printsignal");
function buffer2bitArray(b) {
const res = [];
for (let i=0; i<b.length; i++) {
for (let j=0; j<8; j++) {
res.push((b[i] >> (7-j) &1));
}
}
return res;
}
function bitArray2buffer(a) {
const len = Math.floor((a.length -1 )/8)+1;
const b = new Buffer.alloc(len);
for (let i=0; i<a.length; i++) {
const p = Math.floor(i/8);
b[p] = b[p] | (Number(a[i]) << ( 7 - (i%8) ));
}
return b;
}
describe("SHA256 test", () => {
it("Should calculate a hash", async () => {
it("Should work bits to array and array to bits", async () => {
const b = new Buffer.alloc(64);
for (let i=0; i<64; i++) {
b[i] = i+1;
}
const a = buffer2bitArray(b);
const b2 = bitArray2buffer(a);
assert.equal(b.toString("hex"), b2.toString("hex"));
});
it("Should calculate a hash of 1 compressor", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "sha256_2_test.circom"));
const circuit = new snarkjs.Circuit(cirDef);
@ -38,5 +73,64 @@ describe("SHA256 test", () => {
assert(witness[1].equals(snarkjs.bigInt(r)));
}).timeout(1000000);
it("Should calculate a hash of 2 compressor", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "sha256_test512.circom"), {reduceConstraints:false} );
const circuit = new snarkjs.Circuit(cirDef);
console.log("Vars: "+circuit.nVars);
console.log("Constraints: "+circuit.nConstraints);
/*
const testStr = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
const b = Buffer.from(testStr, 'utf8');
*/
const b = new Buffer.alloc(64);
for (let i=0; i<64; i++) {
b[i] = i+1;
}
const hash = crypto.createHash("sha256")
.update(b)
.digest("hex");
const arrIn = buffer2bitArray(b);
const witness = circuit.calculateWitness({ "in": arrIn } /*, {logOutput: true} */);
const arrOut = witness.slice(1, 257);
const hash2 = bitArray2buffer(arrOut).toString("hex");
assert.equal(hash, hash2);
}).timeout(1000000);
it("Should calculate a hash of 2 compressor", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "sha256_test448.circom"), {reduceConstraints:false} );
const circuit = new snarkjs.Circuit(cirDef);
console.log("Vars: "+circuit.nVars);
console.log("Constraints: "+circuit.nConstraints);
const testStr = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
const b = Buffer.from(testStr, 'utf8');
for (let i=0; i<64; i++) {
b[i] = i+1;
}
const hash = crypto.createHash("sha256")
.update(b)
.digest("hex");
const arrIn = buffer2bitArray(b);
const witness = circuit.calculateWitness({ "in": arrIn } /*, {logOutput: true} */);
const arrOut = witness.slice(1, 257);
const hash2 = bitArray2buffer(arrOut).toString("hex");
assert.equal(hash, hash2);
}).timeout(1000000);
});