IOTA Proof-of-Work algorithm ported to Javascript to work in WebGL2-enabled browsers
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paulhandy Merge pull request #18 from l3wi/master
Fix - overideAttachToTangle
Latest commit 2da1de3 Oct 12, 2017

README.md

curl.lib.js

IOTA Proof-of-Work algorithm ported to Javascript to work in WebGL2-enabled browsers

build

npm install
npm run build

usage

An example of the usage of curl.lib.js:

var curl = require('curl.lib.js');
var minWeight = 18;
curl.pow({trytes: myTryteString, minWeight})
    .then((nonce) =>{
        console.log(myTryteString.substr(0, 2187-81).concat(nonce));
    }).catch((error) => {
        /*
         woops. 
            maybe your trits were bad, 
            or your minWeightMagnitude was bad.
         Perhaps you need to take a long introspection,
         or just
         */
         console.log(error);
    });

Available functions:

  • pow({trytes, minWeight})
    • gets the proof-of-work on a transaction
    • possible errors:
      • Webgl2 wasn't available
      • Transaction Trits were wrong length
      • Min Weight Magnitude was greater than Hash length (243)
  • setOffset(offset<int >0>)
    • sets an offset to start pow search from
    • useful for amortized proof of work
  • getHashCount()
    • returns the number of concurrent hash rows completed by this worker
  • interrupt(void)
    • interrupts the currently running proof-of-work function
  • resume(void)
    • continues the proof-of-work that you just interrupted
  • remove(void)
    • removes the proof-of-work job that you had previously queued
  • overrideAttachToTangle(iota)
    • overrides attachToTangle for iota.lib.js object

In Browser

Include dist/curl.min.js in your browser, and you'll find the curl object available in the window space.

To Do


  • Improve speed
    • Find out some way to perform iterative loops on Fragment Shader when each step needs to know the output of the last from a separate index (i,e. hacked-together compute shader).