Class: Yodatra::Crypto

Inherits:
Object
  • Object
show all
Defined in:
lib/yodatra/crypto.rb

Class Method Summary collapse

Class Method Details

.generate_pbkdf(password, salt = nil) ⇒ Object

Computes the PBKDF2-SHA256 digest of a password using 10000 iterations and the given salt, and return a 32-byte output. If no salt is given, a random 8-byte salt is generated. The salt is also returned.



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# File 'lib/yodatra/crypto.rb', line 8

def generate_pbkdf(password, salt = nil)
  new_salt = salt
  iter = 1000

  if salt.nil?
    new_salt = SecureRandom.random_bytes(8)
  end

  digest = OpenSSL::Digest::SHA256.new
  len = digest.digest_length
  value = OpenSSL::PKCS5.pbkdf2_hmac(password, new_salt, iter, len, digest)

  [new_salt, value]
end