Discrete Mathematics Cryptography Encryption Online Exam Quiz

Discrete Mathematics Cryptography Encryption GK Quiz. Question and Answers related to Discrete Mathematics Cryptography Encryption. MCQ (Multiple Choice Questions with answers about Discrete Mathematics Cryptography Encryption

Let A’s public key is n=6, 736, 180, 7817, 961, 456, 267 and e = 5 and B sends the ciphertext. c = 456, 871, 122, 391, 882, 538 to A. Determine B’s message in numeric format?

Options

A : 235813

B : 57971.89

C : 770190.04

D : 687651.9

View Answer

How many bytes of the secret key is generated using Diffie-Hellman encryption/decryption scheme?

Options

A : 256

B : 871

C : 1024

D : 962

View Answer

How many combinations of keys can be constructed from a 72 ciphertext stream cipher?

Options

A : 4271

B : 7345

C : 3291

D : 2556

View Answer

What is the block size of RC6 Feistel block cipher?

Options

A : 5013 bits

B : 128 bits

C : 596 bits

D : 1768 bits

View Answer

The default key size of RC2 Feistel cipher is _______

Options

A : 64GB

B : 64 bits

C : 64 bytes

D : 64KB

View Answer

If there are 256 cipher texts per plain text and a total of 218 plaintexts of length 18 exists. Then determine the number of distinct ciphertexts?

Options

A : 761

B : 274

C : 186

D : 289

View Answer

In encryption, which of the following is the best text encoding technique?

Options

A : ASCII encoding

B : Hex-encoding

C : Unicode technique

D : Base64 encoding

View Answer

In which of the following systems, encryption slower than decryption?

Options

A : elliptic curve cryptography

B : parabolic curve cryptography

C : symmetric cryptography

D : antisymmetric cryptography

View Answer

_______ are used as the base of the Public Key Infrastructure.

Options

A : SSL certificates

B : TLS certificates

C : X.509 certificates

D : HAS certificates

View Answer

TEA cipher uses which of the following structure?

Options

A : standard cipher structure

B : pseudo random structure

C : feistel structure

D : block structure

View Answer

Chemical Engineering Basics - Part 1 more Online Exam Quiz

Discrete Mathematics Closure Relations

Discrete Mathematics Combinations

Discrete Mathematics Cosets

Discrete Mathematics Counting Functions

Discrete Mathematics Cryptography Decryption

Discrete Mathematics Cycles

Discrete Mathematics Cyclic Groups

Discrete Mathematics De Morgan Laws

Discrete Mathematics Derangements

Discrete Mathematics Diagraph