57 lines
2.4 KiB
JavaScript
57 lines
2.4 KiB
JavaScript
'use strict';
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// For the browser test builder to work you MUST import the module in a variable that
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// is the camelised version of the package name.
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const bigintCryptoUtils = require('../dist/bigint-crypto-utils-latest.node');
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const chai = require('chai');
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const inputs = [
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{
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a: BigInt(4),
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b: BigInt(-1),
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n: BigInt(19),
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modPow: BigInt(5)
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},
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{
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a: BigInt(-5),
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b: BigInt(2),
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n: BigInt(7),
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modPow: BigInt(4)
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},
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{
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a: BigInt(2),
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b: BigInt(255),
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n: BigInt(64),
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modPow: BigInt(0)
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},
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{
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a: BigInt(3),
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b: BigInt(3),
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n: BigInt(25),
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modPow: BigInt(2)
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}
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];
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describe('modPow', function () {
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for (const input of inputs) {
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describe(`modPow(${input.a}, ${input.b}, ${input.n})`, function () {
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it(`should return ${input.modPow}`, function () {
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const ret = bigintCryptoUtils.modPow(input.a, input.b, input.n);
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chai.expect(ret).to.equal(input.modPow);
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});
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});
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}
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describe('Time profiling', function () {
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let iterations = 500;
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it(`just testing ${iterations} iterations of a big modular exponentiation (1024 bits)`, function () {
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const p = BigInt('103920301461718841589267304263845359224454055603847417021399996422142529929535423886894599506329362009085557636432288745748144369296043048325513558512136442971686130986388589421125262751724362880217790112013162815676017250234401214198365302142787009943498370856167174244675719638815809347261773472114842038647');
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const b = BigInt('313632271690673451924314047671460131678794095260951233878123501752357966284491455239133687519908410656818506813151659324961829045286402303082891913186909806785080978448037486178337722667190743610785429936585699831407575170854873682955317589189564880931807976657385223632835801016017549762825562427694700595');
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const e = BigInt('452149997592306202232720864363485824701879487303880767747217308770351197801836846325633986474037061753983278534192061455638289551714281047915315943771002615269860312318606105460307037327329178890486613832051027105330475852552183444938408408863970975090778239473049899109989825645608770309107015209564444316');
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while (iterations > 0) {
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bigintCryptoUtils.modPow(b, e, p);
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iterations--;
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}
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chai.expect(true).to.be.true;
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});
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});
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}); |