BCrypt::错误::InvalidSalt:无效的salt Devise

Question

我在尝试创建新用户时遇到了这个错误，比如这个

>> User.create(:email=>"[e-mail]", :password => "hello")
BCrypt::Errors::InvalidSalt: invalid salt
from /Library/Ruby/Gems/1.8/gems/bcrypt-ruby-3.0.1/lib/bcrypt.rb:56:in `hash_secret'
from /Library/Ruby/Gems/1.8/gems/bcrypt-ruby-3.0.1/lib/bcrypt.rb:161:in `create'
from /Library/Ruby/Gems/1.8/gems/devise-2.1.2/lib/devise/models/database_authenticatable.rb:110:in `password_digest'
from /Library/Ruby/Gems/1.8/gems/devise-2.1.2/lib/devise/models/database_authenticatable.rb:37:in `password='
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/attribute_assignment.rb:85:in `send'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/attribute_assignment.rb:85:in `assign_attributes'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/attribute_assignment.rb:78:in `each'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/attribute_assignment.rb:78:in `assign_attributes'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/base.rb:495:in `initialize'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/persistence.rb:44:in `new'
from /Library/Ruby/Gems/1.8/gems/activerecord-3.2.2/lib/active_record/persistence.rb:44:in `create'
from (irb):3

>

Gemfile

require 'rbconfig'
HOST_OS = RbConfig::CONFIG['host_os']
source 'https://rubygems.org'
gem 'rails', '3.2.2'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'mysql2'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem "compass-rails"  
  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer'
  gem 'less'
  gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
gem 'twitter-bootstrap-rails'
gem "friendly_id", "~> 4.0.1"
gem "rest-client"
gem "haml", ">= 3.1.6"
gem "haml-rails", ">= 0.3.4", :group => :development
gem "devise", ">= 2.1.0"
gem "cancan", ">= 1.6.7"
gem "rolify", ">= 3.1.0"
gem "therubyracer", :group => :assets, :platform => :ruby
gem "simple_form"
gem "will_paginate", ">= 3.0.3"
gem "paperclip", "~> 2.7"
gem "rdiscount"
gem 'oily_png'

用户.rb

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable,
  # :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me
end

我在谷歌上搜索了一下，发现了一篇文章，让我把config.encryptor=：sha1放在了这里，而不是config.encyptor=：bcrypt，但问题并没有解决。。

有人吗？

Answer 1

如果您尝试重新安装bcrypt-ruby gem怎么办？

  # Remove all versions of bcrypt-ruby
  sudo gem uninstall bcrypt-ruby
  # Install the latest version 
  sudo gem install bcrypt-ruby

Answer 2

重新安装bcrypt ruby对我不起作用。

错误在bcrypt-ruby>=3.1.10中得到修复，但Rails 3.2锁定在bcrypt-Ruby3.0.x上。

解决方案是：

• 移动到更新的Rails版本（>=4）
• 使用旧的Ruby版本（2.1.x）
• 自行进行更改并保持安全更新（因为目前Rails3.2只支持严格的安全更新）