Class: Encrypt

Inherits:
Object
  • Object
show all
Defined in:
lib/vimamsa/encrypt.rb

Instance Method Summary collapse

Constructor Details

#initialize(pass_phrase) ⇒ Encrypt

Returns a new instance of Encrypt.



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# File 'lib/vimamsa/encrypt.rb', line 5

def initialize(pass_phrase)
  salt = "uvgixEtU"
  @enc = OpenSSL::Cipher.new "AES-128-CBC"
  @enc.encrypt
  @enc.pkcs5_keyivgen pass_phrase, salt
  @dec = OpenSSL::Cipher.new "AES-128-CBC"
  @dec.decrypt
  @dec.pkcs5_keyivgen pass_phrase, salt
end

Instance Method Details

#decrypt(encrypted) ⇒ Object 



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# File 'lib/vimamsa/encrypt.rb', line 24

def decrypt(encrypted)
  cipher=@dec
  encrypted = [encrypted].pack("H*").unpack("C*").pack("c*")
  plain = cipher.update encrypted
  plain << cipher.final
  plain.force_encoding("utf-8")
  @dec.reset
  return plain
end

#encrypt(text) ⇒ Object 



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# File 'lib/vimamsa/encrypt.rb', line 15

def encrypt(text)
  cipher=@enc
  encrypted = cipher.update text
  encrypted << cipher.final
  encrypted = encrypted.unpack('H*')[0].upcase
  @enc.reset
  return encrypted
end