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Class: ActiveRecord::Encryption::Key

Relationships & Source Files
Inherits: Object
Defined in: activerecord/lib/active_record/encryption/key.rb

Overview

A key is a container for a given #secret

Optionally, it can include #public_tags. These tags are meant to be stored in clean (public) and can be used, for example, to include information that references the key for a future retrieval operation.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(secret) ⇒ Key

[ GitHub ]

  
# File 'activerecord/lib/active_record/encryption/key.rb', line 13

def initialize(secret)
  @secret = secret
  @public_tags = Properties.new
end

Class Method Details

.derive_from(password)

[ GitHub ]

  
# File 'activerecord/lib/active_record/encryption/key.rb', line 18

def self.derive_from(password)
  secret = ActiveRecord::Encryption.key_generator.derive_key_from(password)
  ActiveRecord::Encryption::Key.new(secret)
end

Instance Attribute Details

#public_tags (readonly)

[ GitHub ]

  
# File 'activerecord/lib/active_record/encryption/key.rb', line 11

attr_reader :secret, :public_tags

#secret (readonly)

[ GitHub ]

  
# File 'activerecord/lib/active_record/encryption/key.rb', line 11

attr_reader :secret, :public_tags

Instance Method Details

#id

[ GitHub ]

  
# File 'activerecord/lib/active_record/encryption/key.rb', line 23

def id
  Digest::SHA1.hexdigest(secret).first(4)
end