I'm trying to port the following php code to javascript on node.js:   $mac = hash_hmac('SHA256', 'string', 'secret', true); $coded = base64_encode($mac);   I've tried the following:   var Crypto = require('crypto&#...
I am trying to do a Sha256 on a file in Javascript. I used FileReader(HTML5) to read in a file. I use the readAsBinaryString function in the FileReader to pass in the images file. Then on the FileReader.onload function I pass in the evt.target.result...
I have a database from django and I want to work with it from Node.js. I have a task: authenticate users. Known from database: algorithm pbkdf2_sha256, salt, 10000 iterations and base64-encoded hash. What steps I must to do in JS to encode some passw...
Is it possible to calculate sha256 hashes in the browser using the user's video card, eg. by using WebGL or Flash?  I'm afraid this is all there is to ask, but if more elaboration is needed please do not hesitate to tell me in a comment.  Tha...
I'm trying to generate SHA-256 hash for files.  I have used https://www.npmjs.com/package/crypto-js library for that. please see below code for that.   import { Component, OnInit } from '@angular/core'; var SHA256 = require("crypto-js...
I am creating a hash of an auto-incrementing number. I have created two example loops of how I'm trying to achieve this.  When #1 is is run, the first hash is logged to the console and on the second iteration through the loop, the following error...
I am currently working on a project that will involve credit card swipes for admissions based on database rows. Like a will call system, the SHA-256 hash of the CC number must match the hash in the DB row in order to be considered the "proper pic...
Question:      How to generate a checksum correctly, which is unique, consistent independent of browsers? Also, I would like to convert a SHA256/MD5 checksum string to 64-bit. How to properly read a file without huge RAM requirement to generate check...
I need to encrypt my password in SHA256 before making API request . I am not able to find any implementation of SHA-256 in Angular2...
I am trying to recreate the following C# code in JavaScript.  SHA256 myHash = new SHA256Managed(); Byte[] inputBytes = Encoding.ASCII.GetBytes("test"); myHash.ComputeHash(inputBytes); return Convert.ToBase64String(myHash.Hash);   this code re...

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