license and AES

app/models/AESEncDec.rb

@@ -0,0 +1,31 @@
+require 'openssl'
+require 'base64'
+require 'uri'
+
+class AESEncDec {
+	cipher = OpenSSL::Cipher::Cipher.new("aes-256-cbc")
+
+	def export_key 
+		ENV['aes_key']  = cipher.key = cipher.random_key # stores the key in key, and also sets the generated key on the cipher
+		ENV['aes_iv']  = cipher.iv = cipher.random_iv # stores the iv in iv, and also sets the generated iv on the cipher
+	end
+
+	def encrypt(data)
+		cipher.encrypt
+		cipher.key = ENV["aes_key"]
+		cipher.iv = ENV["aes_iv"]
+		encrypted = cipher.update(data) + cipher.final
+		encrypted = Base64.urlsafe_encode64(encrypted)
+		return encrypted
+	end
+
+	def decrypt 
+		cipher.decrypt
+		cipher.key = ENV["aes_key"]
+		cipher.iv = ENV["aes_iv"]
+
+		# Start the decryption
+		decoded = Base64.urlsafe_decode64(encrypted)
+		decrypted = cipher.update(decoded) + cipher.final
+	end
+}