Class: Grassy::AES

Inherits:
Object
  • Object
show all
Defined in:
lib/grassy/aes.rb

Instance Method Summary collapse

Constructor Details

#initialize(key, iv) ⇒ AES

Returns a new instance of AES.



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# File 'lib/grassy/aes.rb', line 3

def initialize(key, iv)
  @key = key
  @iv = iv
end

Instance Method Details

#decrypt(payload) ⇒ Object 



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# File 'lib/grassy/aes.rb', line 16

def decrypt(payload)
  cipher = OpenSSL::Cipher::AES128.new(:CBC)
  cipher.decrypt
  cipher.key = @key
  cipher.iv = @iv
  cipher.update(Base64.decode64(payload)) + cipher.final
end

#encrypt(payload) ⇒ Object 



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# File 'lib/grassy/aes.rb', line 8

def encrypt(payload)
  cipher = OpenSSL::Cipher::AES128.new(:CBC)
  cipher.encrypt
  cipher.key = @key
  cipher.iv = @iv
  Base64.strict_encode64(cipher.update(payload) + cipher.final)
end