LumeWeb
/
bigint-crypto-utils
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Now test timing is more accurate

This commit is contained in:
juanelas 2019-04-23 11:33:48 +02:00
parent 22b9ff2e4c
commit b6946216da
3 changed files with 45 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
README.md
View File

@ -1,11 +1,21 @@
# bigint-crypto-utils
Utils for working with cryptography using native JS (stage 3) implementation of BigInt. It includes some extra functions to work with modular arithmetics along with secure random numbers and a fast strong probable prime generation/testing (parallelised multi-threaded Miller-Rabin primality test). It can be used by any [Web Browser or webview supporting BigInt](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#Browser_compatibility) and with Node.js (>=10.4.0). In the former case, for multi-threaded primality tests, you should use Node.js 11 or enable at runtime with `node --experimental-worker` with Node.js >=10.5.0.
Utils for working with cryptography using native JS (stage 3) implementation of BigInt. It includes some extra functions
to work with modular arithmetics along with secure random numbers and a fast strong probable prime generation/testing
(parallelised multi-threaded Miller-Rabin primality test). It can be used by any [Web Browser or webview supporting
BigInt](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#Browser_compatibility)
and with Node.js (>=10.4.0). In the former case, for multi-threaded primality tests, you should use Node.js 11 or enable
at runtime with `node --experimental-worker` with Node.js >=10.5.0.
_The operations supported on BigInts are not constant time. BigInt can be therefore **[unsuitable for use in cryptography](https://www.chosenplaintext.ca/articles/beginners-guide-constant-time-cryptography.html).** Many platforms provide native support for cryptography, such as [Web Cryptography API](https://w3c.github.io/webcrypto/) or [Node.js Crypto](https://nodejs.org/dist/latest/docs/api/crypto.html)._
_The operations supported on BigInts are not constant time. BigInt can be therefore **[unsuitable for use in
cryptography](https://www.chosenplaintext.ca/articles/beginners-guide-constant-time-cryptography.html).** Many platforms
provide native support for cryptography, such as [Web Cryptography API](https://w3c.github.io/webcrypto/) or [Node.js
Crypto](https://nodejs.org/dist/latest/docs/api/crypto.html)._
## Installation
bigint-crypto-utils is distributed for [web browsers and/or webviews supporting BigInt](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#Browser_compatibility) as an ES6 module or an IIFE file; and for Node.js (>=10.4.0), as a CJS module.
bigint-crypto-utils is distributed for [web browsers and/or webviews supporting
BigInt](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#Browser_compatibility)
as an ES6 module or an IIFE file; and for Node.js (>=10.4.0), as a CJS module.
bigint-crypto-utils can be imported to your project with `npm`:
```bash
@ -13,7 +23,11 @@ npm install bigint-crypto-utils
```
NPM installation defaults to the ES6 module for browsers and the CJS one for Node.js.
For web browsers, you can also directly download the minimised version of the [IIFE file](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/dist/bigint-crypto-utils-latest.browser.min.js) or the [ES6 module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/dist/bigint-crypto-utils-latest.browser.mod.min.js) from GitHub.
For web browsers, you can also directly download the minimised version of the [IIFE
file](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/dist/bigint-crypto-utils-latest.browser.min.js)
or the [ES6
module](https://raw.githubusercontent.com/juanelas/bigint-crypto-utils/master/dist/bigint-crypto-utils-latest.browser.mod.min.js)
from GitHub.
## Usage example

2
test/02_PrimeGeneration.js
View File

@ -17,8 +17,6 @@ describe('Testing generation of prime numbers', function () {
describe(`Executing prime(${bitLength})`, function () {
it(`should return a random ${bitLength}-bits probable prime`, async function () {
let prime = await bigintCryptoUtils.prime(bitLength);
const ret = await bigintCryptoUtils.isProbablyPrime(prime);
chai.expect(ret).to.equal(true);
let bits = 1;
do {
bits++;

2
test/browser/tests.js
View File

@ -82,8 +82,6 @@ describe('Testing generation of prime numbers', function () {
describe(`Executing prime(${bitLength})`, function () {
it(`should return a random ${bitLength}-bits probable prime`, async function () {
let prime = await bigintCryptoUtils.prime(bitLength);
const ret = await bigintCryptoUtils.isProbablyPrime(prime);
chai.expect(ret).to.equal(true);
let bits = 1;
do {
bits++;