Class: EncodedToken::Encryptor

Inherits:
Object
  • Object
show all
Includes:
ErrorMessages
Defined in:
lib/encoded_token/encryptor.rb

Overview

EncodedToken::Encryptor

This class is responsible for encryption and decryption.

Constant Summary

Constants included from ErrorMessages

EncodedToken::ErrorMessages::CIPHER_ERRORS, EncodedToken::ErrorMessages::CONFIG_ERRORS, EncodedToken::ErrorMessages::ENCODED_TOKEN_ERRORS, EncodedToken::ErrorMessages::ENCODER_ERRORS, EncodedToken::ErrorMessages::ENCRYPTOR_ERRORS, EncodedToken::ErrorMessages::ERROR_MESSAGES, EncodedToken::ErrorMessages::V1_ENCODER_ERRORS

Instance Method Summary collapse

Instance Method Details

#cipher ⇒ Cipher

Returns the cipher instance.

Returns:

  • (Cipher) —

    the cipher instance.



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# File 'lib/encoded_token/encryptor.rb', line 86

def cipher
  @cipher
end

#decrypt(encrypted_string) ⇒ String

Decrypts the given encrypted string.

Parameters:

  • encrypted_string (String) —

    the string to decrypt.

Returns:

  • (String) —

    the decrypted string.



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# File 'lib/encoded_token/encryptor.rb', line 56

def decrypt(encrypted_string)
  process_chars(encrypted_string, :decrypt)
end

#encrypt(original_string) ⇒ String

Encrypts the given original string.

Parameters:

  • original_string (String) —

    the string to encrypt.

Returns:

  • (String) —

    the encrypted string.



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# File 'lib/encoded_token/encryptor.rb', line 43

def encrypt(original_string)
  process_chars(original_string, :encrypt)
end

#key ⇒ String

Returns the current root key.

Returns:

  • (String) —

    the root key.



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# File 'lib/encoded_token/encryptor.rb', line 76

def key
  @root_key
end

#padding ⇒ Integer

Returns the random padding size for the current root key.

Returns:

  • (Integer) —

    the padding size.



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# File 'lib/encoded_token/encryptor.rb', line 66

def padding
  @cipher.padding
end

#valid_key?(key) ⇒ Boolean

Validates if the given key is part of the cipher's key list.

Parameters:

  • key (String) —

    the key to validate.

Returns:

  • (Boolean) —

    true if the key is valid, false otherwise.



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# File 'lib/encoded_token/encryptor.rb', line 30

def valid_key?(key)
  @cipher.valid_key?(key)
end