Which of the following is a mode of operation for the Block ciphers in cryptography?
Electronic Code Book (ECB)
Cipher Block Chaining (CBC)
Counter (CTR) mode
All of the above
Correct Answer :
D. All of the above
All the mentioned modes are followed by the block cipher techniques. Therefore, the correct answer is d. All of the above.
Related Questions
Public key cryptography is a ... cryptosystem
Symmetric
Asymmetric
Symmetric & Asymmetric both
None of these
Cipher in cryptography is
Encrypted message
Algorithm for performing encryption and decryption
Both algorithm for performing encryption and decryption and encrypted message
Decrypted message
What is the output of the N 1024-bit blocks from the Nth stage in this?
512 bits
1024 bits
N x 1024bits
N x 512 bits
The DES (Data Encryption Standard) cipher follows the fiestal structure. Which of the following properties are not shown by the fiestal structure?
The input text is divided into two parts: one being left half and another one being right half.
Swapping of the left and right halves are performed after each round.
The plain text is converted into a matrix form first
None of the above
What is the block size of plain text in SHA- 512 algorithm?
512 bits
1024 bits
2048 bits
None of the above
Digital Signatures authenticates the sender by appending the original message with the ____ digest.
Decrypted message
Encrypted message
Systematic approach
None of the mentioned above
We are provided the plain text SUN. You need to convert the given plain text into ciphertext under the Ceasar cipher encryption technique. Which of the following options is the correct ciphertext for the given text if the key is 2?
UWP
NUS
WUP
QSL
Which two principles of quantum mechanics on which quantum cryptography are dependent?
Heisenberg Uncertainty Principle and Photon Polarization Principle.
Fundamental Principle and Bohr's Model Principle
Momentum Principle and Photons Principle
Planck's Principle and Fundamental Principle
Which of the following is not a principle of data security?
Data Confidentiality
Data Integrity
Authentication
None of the above
Which of the following is not a type of symmetric-key cryptography technique?
Caesar cipher
Data Encryption Standard (DES)
Diffie Hellman cipher
Playfair cipher
What is the full-form of RSA in the RSA encryption technique?
Round Security Algorithm
Rivest, Shamir, Adleman
Robert, Shamir, Addie
None of the above
RSA algorithm is ____ cryptography algorithm.
Systematic
Symmetric
Asymmetric
None of the mentioned above
Amongst which of the following is /are good for Hashes,
Password protection
Data integrity / file verification
Digital signatures and virus signatures
All of the mentioned above
Codes and ciphers are different ways to _____ a message.
Encrypt
Decrypt
Both A and B
All of the mentioned above
To encrypt the plaintext, a cryptographic algorithm works in combination with a key...
Word, number, or phrase
Special Symbols
Function Keys
All of these
Which of the following security attacks is not an active attack? ORWhich of the following attacks is a passive attack?
Masquerade
Modification of message
Denial of service
Traffic analysis
All the below-stated processes are performed in the AES (Advanced Encryption Standard) Algorithm. Which of the following process(s) are not performed in the final round of the AES?
a) Substitution bytes
b) Shift rows
c) Mix columns
d) Add round key
Options
i.
iii.
All of the mentioned
None of the mentioned
The Data Encryption Standard (DES) is an example of a ...
Conventional cryptosystem
Asymmetric cryptosystem
Caesar's cryptosystem
All of these
Which of the following modes of operation in DES is used for operating?
Cipher Feedback Mode (CFB)
Cipher Block chaining (CBC)
Electronic code book (ECB)
Output Feedback Modes (OFB)
ElGamal encryption system is an asymmetric key encryption algorithm.
Public-key cryptography
Private-key cryptography
Both
None of these
When a hash function is used to provide message authentication, the hash function value is called to as:
Message Field
Message Digest
Message Score
Message Leap
How many elements are used in cryptography tools?
1
4
6
3
Hash functions are used in ___ and have variable levels of complexity and difficulty.
System approach
Cyber safe
Cryptography
None of the mentioned above
Amongst which of the following is/ are showing the goodness of electronic code book,
Parallel encryption of blocks of bits is possible
It is a faster way of encryption.
Simple way of the block cipher.
All of the mentioned above
The above steps are performed in each round of which of the following ciphers?
Rail fence cipher
Data Encryption Standard (DES)
Advance Encryption Standard (AES)
None of the above
_____ and ______ protocol models can be extended to Entangled particles theory.
SARG04 and HTTP
FTP and SSP
SARG04 and SSP
HTTP and FTP
Which of the following options is not correct according to the definition of the Hash Function?
Hash Functions are mathematical functions
They compress the input values
The hash functions work on arbitrary length input but produces fixed length output.
None of the above
Encryption algorithms are divided into two categories based on the ______.
Output type
Input type
Process type
All of the mentioned above
Block ciphers accumulate symbols in a message of a ______.
Fixed size
Variable
Integration
All of the mentioned above
Conventional cryptography also known as ... encryption.
asymmetric-key
logical-key
symmetric-key
None of these