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Contents
require "digest/sha2"
module Devise
# Implements a way of adding different encryptions.
# The class should implement a self.digest method that taks the following params:
# - password
# - stretches: the number of times the encryption will be applied
# - salt: the password salt as defined by devise
# - pepper: Devise config option
#
module Encryptors
# = Sha512
# Uses the Sha512 hash algorithm to encrypt passwords.
class Sha512
# Gererates a default password digest based on salt, pepper and the
# incoming password.
def self.digest(password, stretches, salt, pepper)
digest = pepper
stretches.times { digest = self.secure_digest(salt, digest, password, pepper) }
digest
end
private
# Generate a Sha512 digest joining args. Generated token is something like
# --arg1--arg2--arg3--argN--
def self.secure_digest(*tokens)
::Digest::SHA512.hexdigest('--' << tokens.flatten.join('--') << '--')
end
end
end
end
Version data entries
20 entries across 20 versions & 2 rubygems