Devise gem使用什么算法来生成认证令牌？

Question

I have an app that uses the Devise authentication token mechanism to do client token authentication. I was wondering what algorithm the gem uses to generate the token itself? Is it BCrypt? MD5 etc etc...

Answer 1

The code is in devise.rb :

# Generate a friendly string randomically to be used as token.
def self.friendly_token
  SecureRandom.base64(15).tr('+/=lIO0', 'pqrsxyz')
end

http://rdoc.info/github/plataformatec/devise/Devise.friendly_token