1. What characteristics would make an encryption absolutely unbreakable? What characteristics would make an encryption impractical to break?
2. Obama and Romney want to share a secret and they do not want the message to be deciphered during communications. Would they use a public or private key when sending the message?
3. What role do technologies such as encryption play in protecting privacy?
4. Describe the process within public key systems if you want to support non-repudiation and securing the message.