From 12f75ff403db252befc8d1ad70836486c6aa527f Mon Sep 17 00:00:00 2001
From: Yan <yanaung.nyein@code2lab.com>
Date: Wed, 15 Nov 2017 12:01:49 +0630
Subject: [PATCH] licensing

---
 app/models/my_aes_crypt.rb     | 38 ++++++++++++++++++++++++++++++++++
 config/initializers/secrets.rb |  6 ++++++
 2 files changed, 44 insertions(+)
 create mode 100644 app/models/my_aes_crypt.rb
 create mode 100755 config/initializers/secrets.rb

diff --git a/app/models/my_aes_crypt.rb b/app/models/my_aes_crypt.rb
new file mode 100644
index 00000000..7427a000
--- /dev/null
+++ b/app/models/my_aes_crypt.rb
@@ -0,0 +1,38 @@
+class MyAesCrypt
+	@cipher = ""
+
+	def initialize
+		@cipher = OpenSSL::Cipher::Cipher.new(ENV["CIPHER_TYPE"])		
+	end
+
+	def export_key(passphrase)
+		# We want a 256 bit key symetric key based on passphrase
+		digest = Digest::SHA256.new
+		key = digest.update(passphrase)
+		key = digest.digest 
+		ENV['AES_KEY']  = cipher_key = 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
+		return cipher_key, cipher_iv
+	end
+
+	private
+	def encrypt(data)
+		cipher.encrypt
+		cipher.key = ENV["aes_key"]
+		cipher.iv = ENV["aes_iv"]
+		encrypted = cipher.update(data) + cipher.final
+		encrypted = Base64.encode64(encrypted)
+		return encrypted
+	end
+
+	def decrypt(data) 
+		cipher.decrypt
+		cipher.key = ENV["aes_key"]
+		cipher.iv = ENV["aes_iv"]
+
+		# Start the decryption
+		decoded = Base64.decode64(data)
+		decrypted = cipher.update(decoded) + cipher.final
+		return decrypted
+	end
+end
\ No newline at end of file
diff --git a/config/initializers/secrets.rb b/config/initializers/secrets.rb
new file mode 100755
index 00000000..a88ce110
--- /dev/null
+++ b/config/initializers/secrets.rb
@@ -0,0 +1,6 @@
+config = YAML.load_file("#{Rails.root}/config/secrets.yml")
+config.fetch(Rails.env, {}).each do |key, value|
+  ENV[key.upcase] = value.to_s
+end
+
+# SECRETS_CONFIG = YAML.load_file("#{Rails.root}/config/secrets.yml")[Rails.env]