Class: Enveloperb::Simple

Inherits:
Object
  • Object
show all
Defined in:
lib/enveloperb/simple.rb

Overview

An Enveloperb cryptography engine using an unprotected string as the wrapping key.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(k) ⇒ Object 



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# File 'lib/enveloperb/simple.rb', line 5

def self.new(k)
  unless k.is_a?(String) && k.encoding == Encoding::BINARY
    raise ArgumentError, "Key must be a binary string"
  end

  unless k.bytesize == 16
    raise ArgumentError, "Key must be 16 bytes"
  end

  _new(k)
end

Instance Method Details

#decrypt(er) ⇒ Object 



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# File 'lib/enveloperb/simple.rb', line 25

def decrypt(er)
  unless er.is_a?(EncryptedRecord)
    raise ArgumentError, "Can only decrypt EncryptedRecord objects; you can make one from a string with EncryptedRecord.new"
  end

  _decrypt(er)
end

#encrypt(s) ⇒ Object 



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# File 'lib/enveloperb/simple.rb', line 17

def encrypt(s)
  unless s.is_a?(String)
    raise ArgumentError, "Can only encrypt strings"
  end

  _encrypt(s)
end