3 changed files with 105 additions and 1 deletions
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+1 -1client/loop-test/loop-test.js
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+17 -0client/loop.html
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+87 -0client/loop.js
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<title>blindsig-client-server-example</title> |
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</head> |
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<body> |
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<h3>loop-test browser version</h3> |
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<p>Open the console to see the logs (you may want to disable the 'Warnings' to avoid flooding the logs with innecessary messages)</p> |
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<button onClick="start();">start()</button> |
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<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script> |
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<script src="blindsecp256k1-browser.js"></script> |
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<script src="loop.js"></script> |
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</body> |
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</html> |
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// This version uses https://github.com/arnaucube/blindsecp256k1-js
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// const blindsecp256k1 = require('blindsecp256k1');
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// const axios = require('axios');
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let signerR, signerQ, m, mBlinded, userSecretData, blindedSig, sig, errCount, verified; |
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const apiUrl = "http://127.0.0.1:3000"; |
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function printPoint(name, p) { |
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console.log(`${name}:\n x: ${p.affineX.toString()}\n y: ${p.affineY.toString()}`); |
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} |
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async function newRequest() { |
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try { |
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const res = await axios.get(apiUrl+'/request'); |
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signerR = blindsecp256k1.Point.fromAffine(blindsecp256k1.ecparams, |
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blindsecp256k1.newBigFromString(res.data.signerR.x), |
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blindsecp256k1.newBigFromString(res.data.signerR.y)); |
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signerQ = blindsecp256k1.Point.fromAffine(blindsecp256k1.ecparams, |
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blindsecp256k1.newBigFromString(res.data.signerQ.x), |
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blindsecp256k1.newBigFromString(res.data.signerQ.y)); |
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let blindRes = blindsecp256k1.blind(m, signerR); |
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mBlinded = blindRes.mBlinded; |
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userSecretData = blindRes.userSecretData; |
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} catch (error) { |
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console.error(error); |
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} |
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} |
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async function askBlindSign() { |
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try { |
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let data = { |
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m: mBlinded.toString(), |
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r: { |
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x: signerR.affineX.toString(), |
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y: signerR.affineY.toString() |
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} |
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}; |
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let res = await axios.post(apiUrl+'/blindsign', data); |
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blindedSig = blindsecp256k1.newBigFromString(res.data.sBlind); |
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sig = blindsecp256k1.unblind( |
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blindedSig, |
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userSecretData); |
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} catch (error) { |
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console.error(error); |
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} |
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} |
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async function verify() { |
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verified = blindsecp256k1.verify(m, sig, signerQ); |
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if (!verified) { |
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errCount++; |
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printPoint("signerR", signerR); |
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printPoint("signerQ", signerQ); |
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console.log("m:", m.toString()); |
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console.log("mBlinded:", mBlinded.toString()); |
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console.log(`userSecretData:\n a: ${userSecretData.a.toString()}\n b: ${userSecretData.b.toString()}`); |
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printPoint("userSecretData.f", userSecretData.f); |
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console.log("blinded sig:", blindedSig.toString()); |
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console.log("sig.s:", sig.s.toString()); |
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printPoint("sig.f", sig.f); |
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console.log("verify", verified); |
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alert("ERROR") |
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} |
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} |
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async function iteration() { |
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await newRequest() |
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await askBlindSign() |
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await verify() |
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} |
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async function start() { |
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errCount = 0; |
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for (let i=0; i<10000; i++) { |
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m = blindsecp256k1.newKeyPair().sk; |
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await iteration() |
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if (i%100 ==0) { |
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console.log("number of iterations", i); |
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} |
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} |
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console.log("errCount", errCount); |
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} |
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