<!DOCTYPE html> <html> <head> <title>bigint-crypto-utils</title> <meta charset="UTF-8" /> <script src="../lib/index.browser.bundle.iife.js"></script> </head> <body> <div id="status">Still computing in background...</div> <p>Look for the results in the JS console (Developer Tools)</p> <script> /* A BigInt with value 666 can be declared calling the bigint constructor as BigInt('666') or with the shorter 666n. Notice that you can also pass a number to the constructor, e.g. BigInt(666). However, it is not recommended since values over 2**53 - 1 won't be safe but no warning will be raised. */ const a = BigInt('5') const b = BigInt('2') const n = 19n console.log(bigintCryptoUtils.modPow(a, b, n)) // prints 6 console.log(bigintCryptoUtils.modInv(2n, 5n)) // prints 3 console.log(bigintCryptoUtils.modInv(BigInt('3'), BigInt('5'))) // prints 2 console.log(bigintCryptoUtils.randBetween(2n ** 256n)) // Prints a cryptographically secure random number between 1 and 2**256 bits. async function primeTesting() { // Output of a probable prime of 2048 bits console.log(await bigintCryptoUtils.prime(2048)) // Testing if a number is a probable prime (Miller-Rabin) const number = 13139188972124309083000292697519085211422620620787723340749020496498012413131881656428777288953095338604061035790562501399090389032827482643578651715752317n const isPrime = await bigintCryptoUtils.isProbablyPrime(number) if (isPrime) { console.log(`${number} is prime`) } else { console.log(`${number} is composite`) } } primeTesting().then(() => { document.getElementById( "status" ).innerHTML = 'Done!' }) </script> </body> </html>