Module: SecurizeString::CipherMethods::ClassMethods

Defined in:
lib/securize_string/cipher_methods.rb

Overview

Adds class methods for OpenSSL::Cipher support, including AES encryption, via inclusion of SecurizeString::CipherMethods into a class.

Instance Method Summary collapse

Instance Method Details

#aes_keygen(key_len = 256) ⇒ Object

A convenience method for generating a random key and init vector for AES keys. Defaults to a key length of 256.



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# File 'lib/securize_string/cipher_methods.rb', line 33

def aes_keygen(key_len=256)
  return cipher_keygen("aes-#{key_len.to_i}-cbc")
end

#cipher_keygen(cipher_name) ⇒ Object

A convenience method for generating random cipher keys and initialization vectors.



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# File 'lib/securize_string/cipher_methods.rb', line 25

def cipher_keygen(cipher_name)
  cipher = OpenSSL::Cipher.new(cipher_name)
  cipher.encrypt
  return [cipher.random_key, cipher.random_iv].map {|s| self.new(s)}
end

#supported_ciphers ⇒ Object

Returns a list of supported ciphers. These can be passed directly into the cipher methods.



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# File 'lib/securize_string/cipher_methods.rb', line 19

def supported_ciphers
  return OpenSSL::Cipher.ciphers
end