ECCouncil 212-81 Practice Test - Questions Answers, Page 20

Which of the following areas is considered a strength of symmetric key cryptography when compared with asymmetric algorithms?

Which of the following is the successor of SSL?

Which of the following acts as a verifier for the certificate authority?

The mode makes a block cipher into a synchronous stream cipher. It generates keystream blocks, which are then XORed with the plaintext blocks to get the ciphertext.

Hash algortihm created by the Russians. Produces a fixed length output of 256bits. Input message is broken up into 256 bit blocks. If block is less than 256 bits then it is padded with 0s.

Storing private keys with a third party is referred to as what?

Early attempt to make substitution ciphers more robust, masks letter frequencies, plain text letters map to multiple cipher text symbols.

In 1977 researchers and MIT described what asymmetric algorithm?

Widely used, particularly with Microsoft operating systems. Created by MIT and derives its name from the mythical three headed dog. The is a great deal of verification for the tickets and the tickets expire quickly. Client authenticates to the Authentication Server once using a long term shared secret and receives back a Ticket-Granting Server. Client can reuse this ticket to get additional tickets without reusing the shared secret. These tickets are used to prove authentication to the Service Server.