A thin Lua wrapper around the OpenBSD implementation of bcrypt. Note that it will NOT run on other operating systems.

Requirements

OpenBSD, LuaJIT (the one bundled with OpenResty will do).

Usage

local bcrypt = require("bcrypt")

-- generate a salt and pass it to digest
local salt = bcrypt.salt(5)
local digest = bcrypt.digest("password", salt)

assert(bcrypt.verify("password", digest))

-- pass number of rounds for salt generation instead of salt
local digest = bcrypt.digest("password", 5)

assert(bcrypt.verify("password", digest))

-- pass only key without salt, salt will automatically be generated in 5 rounds and used
local digest = bcrypt.digest("password")

assert(bcrypt.verify("password", digest))