Cryptography symmetric

Question 1

What symmetric algorithim has a key size of 56, a block size of 64 and goes through 16 rounds of encryption. Which also has a feistel base algoritihm.

Answer 1

DES

Question 2

What symmetric algorithim was created by D. Wheeler and R. Needham and has a key size of 128, a block size of 64 and goes through 64 rounds of encryption. Which also has a feistel base algoritihm.

Answer 2

TEA

Question 3

What symmetric algorithim has a key size of up to256, a block size of 128 and goes through 16 rounds of encryption. Which also has a feistel base algoritihm.
Note: Process Flow 1: subbytes 2: Shift row
3: Mix Colum 4: add round key - No mix- colum in final (10th) round

Answer 3

Two Fish

Question 4

What symmetric algorithim has a key size of 56, a block size of 64 and goes through 16 rounds of encryption. Which also has a feistel base algoritihm.
Note: runs 3 times

Answer 4

3DES

Question 5

What symmetric algorithim has a key size of 80, a block size of 64 and goes through 32 rounds of encryption. Which also has a unbalanced feistel base algoritihm.
Note: designed by NSA for the Clipper Chip

Answer 5

SKIPJACK

Question 6

What symmetric algorithim was created by B. Scheider in 1993 (Key expansion & encryption data) and has a key size of 32 to 448, a block size of 64 and goes through 16 rounds of encryption. Which also has a feistel base algoritihm, in Bcrypt, Crash plan, Cryptodis, DriveCrypt.

Answer 6

BlowFish

Question 7

What symmetric algorithim has a key size of 128,1932,256, a block size of 128 and goes through 10 (for 128) 12(for 192) 14(for 256) rounds of encryption. Which also has a rijyndael Cypher which has both Substitution- Permutation.

Answer 7

AES

Question 8

What symmetric algorithim has a key size of up to 2048, a block size of 32,64,128 and goes through up to 255 rounds of encryption. Note: Faster version of RC5

Answer 8

RC5&RC6

Question 9

What symmetric algorithim has a key size of 128,256, a block size of 64 and goes through 12<80-16>80 rounds of encryption. Which algoritihm is PGP, 8 bit rounds.

Answer 9

Cast

Question 10

What symmetric algorithim has a key size of 1-256, goes through 255 rounds of encryption.

Answer 10

RCA

Question 11

what Stream Cypher has a revised version of Fish to address known plaintext attack vulnerabilities.
Note: Most WIDELY used Stream Cypher.

Answer 11

Pike

Question 12

what Stream Cypher Uses Lagged fibronacci pseudorandom number gen. Data Stream XORed w/ the key

Answer 12

Fish

Question 13

What symmetric algorithim has a key size of 1-2064 and a bit state size of 2048, goes through 1 rounds of encryption.
Note: 40 bit key min. recommended, Weak Stream cypher used in ssl/web WIFI security, RFC 7465 (no 0) in TLS

Answer 13

RC4

Question 14

What symmetric algorithim has a key size of 128, goes through 6 rounds of encryption. With a block size of 64. Which was created by V. Rijmen, J Damen, E. Dewin

Answer 14

Shark

Question 15

What symmetric algorithim has a key size of 128, goes through 8 rounds of encryption. With a block size of 64. Which was created by James Massey, Xuejia Lai.
This has a LAI-Massey Scheme!

Answer 15

IDEA

Question 16

What symmetric algorithim has a key size of 128, 192, and 256 goes through 32 rounds of encryption. With a block size of 128. Which was created by R. Anderson, E. Biham, L. Knudesen
This has a Substitution- premutation Algorithm

Answer 16

Serpent