Which of the following protocols offers native encryption?

While using IPsec, the ESP and AH protocols both provide integrity services. However, when using AH, somespecial attention needs to be paid if one of the peers uses NAT for address translation service. Which of the
items below would affects the use of AH and it´s Integrity Check Value (ICV) the MOST?

Which of the following is BEST provided by symmetric cryptography?

Which of the following would BEST describe a Concealment cipher?

What key size is used by the Clipper Chip?

Which of the following is NOT an encryption algorithm?

Which of the following was NOT designed to be a proprietary encryption algorithm?

In an SSL session between a client and a server, who is responsible for generating the master secret that will
be used as a seed to generate the symmetric keys that will be used during the session?

Which of the following algorithms is a stream cipher?

What is the maximum key size for the RC5 algorithm?