The Caesar Cipher is one of the oldest methods of encryption which was used by Julius Caesar and involved simply shifting text a specified number of positions in the alphabet. The number of shifted positions is known as the key. So a key = 3 would encrypt “ZOO” to “CRR”. Decrypt the following message which has a key = 3: “FRPSXWHU”.
A Virtual Private Network (VPN) is used to securely connect a remote computer to an enterprise network using an encrypted tunnel. In less than 100 words, describe what encryption standards are used in VPN applications today. You can describe the encryption standard used in the VPN application in your organization or one of the subscription-based VPN services available in the market like ExpressVPN (https://www.expressvpn.com/).