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
Correct Answer :
A. UWP
In the Caesar cipher technique, the encryption is performed as follows,
Related Questions
Which of the following are used to create a message digest by the network security protocols?
RSA
SHA-1
DES
MD5
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
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
RSA algorithm is ____ cryptography algorithm.
Systematic
Symmetric
Asymmetric
None of the mentioned 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
Cryptographic hashing provides a barrier to potential _______.
Attackers
Sender
Receiver
None of the mentioned above
With symmetric key algorithms, the ____ key is used for the encryption and decryption of data.
Different
Same
Both A and B
None of the mentioned above
Amongst which of the following is/ are true with reference to step-by-step breakdown of the process of quantum cryptography,
The sender sends a photon through a polarizer with randomly assigned polarizations and bit assignment
Photon uses a beam splitter that can be horizontal, vertical, or diagonal to decode or read the polarization of each photon
Receiver tells the sender the random assignments of a beam splitter for each photon in the same sequence it was sent
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 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
In the AES-128 algorithm there are mainly __________ similar rounds and _________ round is different from other round.
5 similar rounds having 2 pair ; every alternate
9 ; the last
8 ; the first and last
10 ; no
Cipher block chaining or CBC is an advancement made on _____.
Electronic Code Book
Decrypted code
System engineering
All of the mentioned above
A key is a string of bits used by a cryptographic algorithm to transform plain text into ciphertext. Which of the following is capable of becoming a key in a cryptographic algorithm?
An integer values
A square matrix
An array of characters (i.e. a string)
All 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
The Hash Function takes an input of arbitrary length and converts it into a fixed length output.Which of the following names can we use for denoting the output of the hash function?
Hash value
Hash Code
Message Digest
All of the above
When do we compare the AES with DES, which of the following functions from DES does not have an equivalent AES function in cryptography?
f function
permutation p
swapping of halves
xor of subkey with function f
Which is the cryptographic protocol that is used to protect an HTTP connection?
Resource reservation protocol
SCTP
TLS
ECN
_____ and encryption is two separate cryptographic processes.
Hashing
Decryption
Processing
None of the mentioned above
Codes and ciphers are different ways to _____ a message.
Encrypt
Decrypt
Both A and B
All of the mentioned above
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
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
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
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
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
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
The number of rounds in the AES algorithm depends upon the key size being used.Which among the following shows a correct relation between the size of the key used and the number of rounds performed in the AES algorithm?
128 key size: 10 rounds
192 key size: 12 rounds
256 key size: 14 rounds
All of the above
The private key in asymmetric key cryptography is kept by
Sender
Receiver
Sender and receiver
All the connected devices to the network
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
Hash functions are mathematical functions that transform or map a given set of data into a bit string of fixed size, also known as the hash value.
Hash value
Map value
Both A and B
None of the mentioned above
Block ciphers accumulate symbols in a message of a ______.
Fixed size
Variable
Integration
All of the mentioned above