Related Questions
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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?
C. Cryptographic Solution
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To encrypt the plaintext, a cryptographic algorithm works in combination with a key...
A. Word, number, or phrase
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What is the output of the N 1024-bit blocks from the Nth stage in this?
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A hash function is a _____ that converts a numerical input value into another compressed numerical value.
D. None of the mentioned above
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_____ and ______ protocol models can be extended to Entangled particles theory.
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Cipher block chaining or CBC is an advancement made on _____.
D. All of the mentioned above
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Digital Signatures authenticates the sender by appending the original message with the ____ digest.
D. None of the mentioned above
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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.
D. None of the mentioned above
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Among the following given options, chose the strongest encryption technique?
A. DES ( Data Encryption Standard)
D. AES (Advance Encryption Standard)
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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
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How many sub-keys in the total are used by the IDEA for encrypting the plain text into ciphertext?
D. Only one key and no subkeys
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Block ciphers accumulate symbols in a message of a ______.
D. All of the mentioned above
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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?
C. An array of characters (i.e. a string)
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Post-Quantum Cryptography is a classical cryptographic scheme that is conjectured to be secure against ____.
D. None of the mentioned above
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With reference to Cipher Feedback (CFB) Mode, amongst which of the following is /are true,
A. Each ciphertext block gets 'fed back' into the encryption process
B. Encrypt the next plaintext block
D. None of the mentioned above
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How many elements are used in cryptography tools?
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The DES (Data Encryption Standard) cipher follows the fiestal structure. Which of the following properties are not shown by the fiestal structure?
A. The input text is divided into two parts: one being left half and another one being right half.
B. Swapping of the left and right halves are performed after each round.
C. The plain text is converted into a matrix form first
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_____ ciphers encrypt uniformly sized blocks of data.
D. All of the mentioned above
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Hash functions are used in ___ and have variable levels of complexity and difficulty.
D. None of the mentioned above
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The private key in asymmetric key cryptography is kept by
D. All the connected devices to the network
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When a hash function is used to provide message authentication, the hash function value is called to as:
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An initialization vector (IV) or starting variable (SV) is a block of bits that is used by several modes to _____.
A. Randomize the decryption
B. Randomize the encryption
C. Minimize and maximize the randomization
D. None of the mentioned above
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Using Rivest, Shamir, Adleman cryptosystem with p=7 and q=9. Encrypt M=24 to find ciphertext. The Ciphertext is:
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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?
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What does IDEA stand for in the world of cryptography?orThe IDEA word in the IDEA algorithm is the abbreviation for which of the following?
A. Independent Decryption Environment Analysis
B. International Defense Encryption Area
C. International Data Encryption Algorithm
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____ is the message or data that can be readable by the sender.
D. All of the mentioned above
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Which of the following options correctly defines the Brute force attack?
A. Brutally forcing the user to share the useful information like pins and passwords.
B. Trying every possible key to decrypt the message.
C. One entity pretends to be some other entity
D. The message or information is modified before sending it to the receiver.
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In the case of symmetric key encryption, the secret key that both the parties possess can be anything such as a _______.
A. Passcode or a password
D. None of the mentioned above
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When do we compare the AES with DES, which of the following functions from DES does not have an equivalent AES function in cryptography?
D. xor of subkey with function f
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ElGamal encryption system is an asymmetric key encryption algorithm.
A. Public-key cryptography
B. Private-key cryptography