Which of the following is more suitable for a hardware implementation?

The correct answer is A. Stream ciphers. Stream ciphers are more suitable for hardware implementation because they encrypt data one bit or byte at a time using simple operations like XOR combined with a pseudorandom keystream generator. This simplicity translates efficiently into logic gates and shift registers in…

Submitted by hans_de· Apr 18, 2026Cryptography

Question

Options

AStream ciphers
BBlock ciphers
CCipher block chaining
DElectronic code book

How the community answered

(37 responses)

A
95% (35)
B
3% (1)
C
3% (1)

Explanation

Stream ciphers are more suitable for hardware implementation because they encrypt data one bit or byte at a time using simple operations like XOR combined with a pseudorandom keystream generator. This simplicity translates efficiently into logic gates and shift registers in hardware, making them fast and low-latency. Block ciphers, cipher block chaining (CBC), and electronic codebook (ECB) involve more complex round functions, substitution-permutation networks, and multi-step transformations that are better suited for software implementations. Stream ciphers are widely used in hardware-based communications systems and embedded devices.

Topics

#Stream ciphers#Hardware implementation#Block ciphers#Cryptographic primitives

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