Quote from: hoax on January 09, 2014, 01:11:08 PM

Quote from: Come-from-Beyond on January 06, 2014, 02:25:39 PM

Bounty announcement

100'000 NXT will be paid for working JavaScript code that signs and verifies signatures using NRS algo.

- The licence must allow to use the code in any application
- Sign/verify speed must be not lower than 100 signatures per second on a 1 GHz CPU (1 core)
- All the code must be in a single non-obfuscated well-formatted .js file
- Input/output values must be strings like "8302504e4e57c6c65335289879c6915a273d3aae7bd086058e403fcd2bc18341"

The bounty is valid till the 20th of January, 2014 12:00:00 UTC. The complete code must be published in this thread.

Currently i can't see solution for speed up my code to achieve goal, so i decided release it in current state. Other conditions are met.

https://github.com/moadib/nxt_crypto_js

On my PC(core i5 2.6ghz) Java implementation from Nxt sources took approx 20ms for one signature.
My JS code on Google V8(chrome, nodejs) took approx 200ms.

The main problem is that JS doesn't support 64bit math, so script spend most time on emulating this.

Quote

Dependencies, included in script:

Long class from Google Closure Library (Apache license)
jssha256 by B. Poettering (GNU GPL)

Other conditions are met?