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Contents
require "active_support/message_encryptor"
module CryptKeeper
module Provider
class ActiveSupport < Base
attr_reader :encryptor
# Public: Initializes the encryptor
#
# options - A hash, :key and :salt are required
#
# Returns nothing.
def initialize(options = {})
key = options.fetch(:key)
salt = options.fetch(:salt)
@encryptor = ::ActiveSupport::MessageEncryptor.new \
::ActiveSupport::KeyGenerator.new(key).generate_key(salt, 32)
end
# Public: Encrypts a string
#
# value - Plaintext value
#
# Returns an encrypted string
def encrypt(value)
encryptor.encrypt_and_sign(value)
end
# Public: Decrypts a string
#
# value - Cipher text
#
# Returns a plaintext string
def decrypt(value)
encryptor.decrypt_and_verify(value)
end
# Public: Searches the table
#
# records - ActiveRecord::Relation
# field - Field name to match
# criteria - Value to match
#
# Returns an Enumerable
def search(records, field, criteria)
records.select { |record| record[field] == criteria }
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems