this repository contains 3 mains :
- crypto.ex use for test ( take a file, crypt and decrypt this file in one step )
	products a crypted and decrypted file.

- crypt.ex : allow to crypt a file with aes algorithms
	./crypt.ex <FileToCrypt>
		products the crypted file and a json file which contain aes key and aes IV key.

- decrypt.ex : allow to uncrypt a file from a crypted file and a json key file.
	./decrypt.ex <FileToDecrypt> <aesKeyFile>
		products the uncrypted file.
