1. The first tenet of cryptography is confidentiality; that is, assuring the two parties who are engaged in a secure communication that their traffic, if subjected to eavesdropping, will not be understood due to the application of a cryptographic encryption method. If this method is of the symmetric type, a session key must be generated first. Diffie-Hellman and Elgamal are two such algorithms that produce session keys. Discuss the similarities and differences between different key generation schemes (D-H and Elgamal, for instance).

2. The second tenet of cryptography is integrity; that is, the integrity of the messages and data being exchanged between two parties. Hash functions (MD5, SHA-1, SHA-3, etc.) are used to that end. Discuss the five properties and characteristics of a hash function.

3. SSL involved the use of a public-private key pair. How does this enable two-way communication? 4. How is the Samba (SMB) service used by Linux servers to promote interoperability between Linux and Windows servers and hosts on the same network?