Cryptographic hashing provides a barrier to potential _______.
Attackers
Sender
Receiver
None of the mentioned above
Correct Answer :
A. Attackers
Potential attackers are deterred from gaining access to sensitive information by cryptographic hashing. A hostile individual attempting to gain access to the database will be able to see the hashes in the database. The attacker, on the other hand, will be unable to reverse the hash value back to the original password.
Related Questions
Study with quantum computers of future being expected to solve the discrete logarithmic problem and the popularly know cryptography methods such as AES, RSA, DES, quantum cryptography becomes which solution?
Quantum Solution
Foreseen Solution
Cryptographic Solution
Block Cipher Solution
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
Conventional cryptography also known as ... encryption.
asymmetric-key
logical-key
symmetric-key
None of these
The greatest threat is to public cryptography or asymmetric algorithms used for ____.
Digital signatures and
Key exchange
Both A and B
None of the mentioned above
Hash functions are used in ___ and have variable levels of complexity and difficulty.
System approach
Cyber safe
Cryptography
None of the mentioned above
Which of the following properties are the characteristic properties of a block cipher technique which differs from stream cipher?
Avalanche effect
Completeness
Both a. and b.
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
In the case of symmetric key encryption, the secret key that both the parties possess can be anything such as a _______.
Passcode or a password
Developed code
Network set
None of the mentioned above
Basically, in SHA-512, the message is divided into blocks of size ___ bits for the hash computation.
1024
512
256
1248
Amongst which of the following is / are true with reference to the rounds in AES
Byte Substitution
Shift Row
Mix Column and Key Addition
All 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
Encryption algorithms are divided into two categories based on the ______.
Output type
Input type
Process type
All of the mentioned above
Which of the following ciphers is a block cipher?
Caesar cipher
Vernam cipher
Playfair cipher
None of the above
Which of the following security services cannot be achieved using the Hash functions?ORWhich of the following is not possible through hash value?
Password Check
Data Integrity check
Digital Signatures
Data retrieval in its original form
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
A hash function is a _____ that converts a numerical input value into another compressed numerical value.
Abstract view
Mathematical function
Both A and B
None of the mentioned above
Among the following given options, chose the strongest encryption technique?
DES ( Data Encryption Standard)
Double DES
Triple DES
AES (Advance Encryption Standard)
A mechanism used to encrypt and decrypt data.
Cryptography
Algorithm
Data flow
None of these
What is the output of a cryptographic hash function means?
A variable set of bits
A fixed set of bits, derived from one-way mathematical operations
An output which may be easily discovered by an adversary
Outputs of such functions are of no importance
Which of the following modes of operations can be followed for both stream ciphers as well as block ciphers?
CBC (Cipher Block Chaining)
ECB (Electronic Code Book)
CFB (Cipher text Feed Back)
All of the 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
Digital Signatures authenticates the sender by appending the original message with the ____ digest.
Decrypted message
Encrypted message
Systematic approach
None of the mentioned above
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)
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
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
Which of the following are used to create a message digest by the network security protocols?
RSA
SHA-1
DES
MD5
____ is the message or data that can be readable by the sender.
Edited
Main Text
Plain text
All of the mentioned above
Which of the following cannot be chosen as a key in the Caesar cipher?
An integer
An alphabet (A-Z or a-z)
A string
None of the above
Which of the following is not a property of Hash Function?
Pre-Image Resistance
Compression
Fixed Length Output
None of the above
_____ and encryption is two separate cryptographic processes.
Hashing
Decryption
Processing
None of the mentioned above