Generating an MD5 hash for a UTF16LE string in Javascript (with no BOM and excluding 0-byte at the end) - Illustrated with a C#

Question

Generating an MD5 hash for a UTF16LE string in Javascript (with no BOM and excluding 0-byte at the end) - Illustrated with a C#

I've been trying to figure out how to get an MD5 Hash of a UTF16-LE encoded string in JavaScript for the past few days. I have a method in C# as an example, but I'm not sure how to replicate it in JavaScript.

Example:

public string GetMD5Hash (string input) { 
 MD5 md5Hasher = MD5.Create(); 
 byte[] data = md5Hasher.ComputeHash(Encoding.Unicode.GetBytes(input)); 
 StringBuilder sb = new StringBuilder(); 
 for (int i = 0; i < data.Length; i++) { 
  sb.Append(data[i].ToString("x2")); 
 } 
 return sb.ToString(); 
}

Desired Output:

var getMD5Hash(input){
  ....
}

var t = getMD5Hash("1234567z-äbc");
console.log(t) // --> 9e224a41eeefa284df7bb0f26c2913e2

Any help would be greatly appreciated :-/

c#javascript md5

Answer 1

Answer №1

Voila!

const secretCode = challenge + "-" + require('crypto').createHash('md5').update(Buffer(challenge+'-'+password, 'UTF-16LE')).digest('hex')

Answer 2

Voila!

const secretCode = challenge + "-" + require('crypto').createHash('md5').update(Buffer(challenge+'-'+password, 'UTF-16LE')).digest('hex')

Answer 3

Answer №2

let md5 = require('md5');

function encodeStringToMD5_UTF16LE(str){
    let bytes = [];
    for (let i = 0; i < str.length; ++i) {
      let charCode = str.charCodeAt(i);
      bytes = bytes.concat([charCode & 0xff, charCode / 256 >>> 0]);
    }
    return md5(bytes);
}

This code snippet requires the library https://www.npmjs.com/package/md5

Answer 4

let md5 = require('md5');

function encodeStringToMD5_UTF16LE(str){
    let bytes = [];
    for (let i = 0; i < str.length; ++i) {
      let charCode = str.charCodeAt(i);
      bytes = bytes.concat([charCode & 0xff, charCode / 256 >>> 0]);
    }
    return md5(bytes);
}

This code snippet requires the library https://www.npmjs.com/package/md5

Generating an MD5 hash for a UTF16LE string in Javascript (with no BOM and excluding 0-byte at the end) - Illustrated with a C#

Answer №1

Answer №2

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