29 lines
687 B
Ruby
29 lines
687 B
Ruby
# frozen_string_literal: true
|
|
|
|
# Note: This logic was originally extracted from the Pbkdf2 gem to fix Ruby 2.0
|
|
# issues, but that gem has gone stale so we won't be returning to it.
|
|
|
|
require "openssl"
|
|
require "xorcist"
|
|
|
|
class Pbkdf2
|
|
def self.hash_password(password, salt, iterations, algorithm = "sha256")
|
|
h = OpenSSL::Digest.new(algorithm)
|
|
|
|
u = ret = prf(h, password, salt + [1].pack("N"))
|
|
|
|
2.upto(iterations) do
|
|
u = prf(h, password, u)
|
|
Xorcist.xor!(ret, u)
|
|
end
|
|
|
|
ret.bytes.map { |b| ("0" + b.to_s(16))[-2..-1] }.join("")
|
|
end
|
|
|
|
protected
|
|
|
|
def self.prf(hash_function, password, data)
|
|
OpenSSL::HMAC.digest(hash_function, password, data)
|
|
end
|
|
end
|