Pure Lua Scrypt KDF
Scrypt is a KDF (Key Derivation Function) designed for password storage by Colin Percival to be resistant against hardware-assisted attackers by having a tunable memory cost. It is described in RFC 7914.
This module was inspired by https://github.com/cryptocoinjs/scryptsy
A collection of cryptographic primitives and protocols written in pure Lua. This was written to provide cross-platform, tested reference implementations of many different cryptographic primitives. These are written to be easy to read and easy to use, not for performance!
Install via Luarocks:
luarocks install lockbox
Or download and extract it.
local scrypt = require("scrypt")
local result = scrypt(
"", -- Password
"", -- Salt
16, -- Cpu cost (N)
1, -- Memory cost (r)
1, -- Parallelization cost (p)
64 -- dkLen
)
print(result:lower()) --> 77d6576238657b203b19ca42c18a0497f16b4844e3074ae8dfdffa3fede21442fcd0069ded0948f8326a753a0fc81f17e8d3e0fb2e0d3628cf35e20c38d18906- Add tests
- Add (if available) Luajit FFI to avoid memory dump (check out the LuaJIT-FFI-types branch; slower)
MIT License
Copyright (c) 2023 Propagram
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.