Encryption Algorithms

Question 1

DES Key Size, Block Size, Round Count

Answer 1

56 Bits Key Size
64 Bits Block Size
16 Rounds

Question 2

3DES Key Size, Block Size, Round Count

Answer 2

112 Bits Key Size
64 Bits Block Size
16 Rounds

Question 3

AES Key Size, Block Size, Round Count

Answer 3

128, 192, & 256 Bits Key Size
128 Bits Block Size
10 (128), 12 (192), 14 (256) Rounds

Question 4

Blowfish Key Size, Block Size, Round Count

Answer 4

32-448 Bits Key Size
64 Bits Block Size
16 Rounds

Question 5

Twofish Key Size, Block Size, Round Count

Answer 5

Up to 256 Bits Key Size
128 Bits Block Size
16 Rounds

Question 6

Skipjack Key Size, Block Size, Round Count

Answer 6

80 Bits Key Size
64 Bits Block Size
32 Rounds

Question 7

IDEA Key Size, Block Size, Round Count

Answer 7

128 Bits Key Size
64 Bits Block Size
8 Rounds

Question 8

CAST Key Size, Block Size, Round Count

Answer 8

128 or 256 Bits Key Size
64 Bits Block Size
12<80 - 16>80 Rounds

Question 9

TEA Key Size, Block Size, Round Count

Answer 9

128 Bits Key Size
64 Bits Block Cipher
64 Rounds

Question 10

SHARK Key Size, Block Size, Round Count

Answer 10

128 Bits Key Size
64 Bits Block Size
6 Rounds

Question 11

RC5 & RC6 Key Size, Block Size, Round Count

Answer 11

Up to 2048 Bits Key Size
32, 64, 128 Bits Block Size
up to 255 Rounds

Question 12

SERPENT Key Size, Block Size, Round Count

Answer 12

128, 192, 256 Bits Key Size
128 Bits Block Size
32 Rounds

Question 13

RCA Key Size, Round Count

Answer 13

1-256 Bits Key Size
up to 255 Rounds

Question 14

RC4 Key Size, Round Count

Answer 14

2064 Bit State Size, 1-2048 Bit Key Size (40 bit minimum recommended)
1 Round

Question 15

RSA Key Size, Round Count

Answer 15

1024-4096 Bits Key Size
1 Round

Question 16

Symmetric Block Ciphers

Answer 16

DES
3DES
AES
BLOWFISH
TWOFISH
SKIPJACK
IDEA
CAST
TEA
SHARK
RC5 & RC6
SERPENT

Question 17

Symmetric Stream Ciphers

Answer 17

RCA
RC4
FISH
PIKE

Question 18

Asymmetric Ciphers

Answer 18

RSA
ECC
EL GAMAL
DSA
DIFFIE HELLMAN