Which of the following is a symmetric encryption algorithm?

The correct answer is C. RC5. RC5 is a symmetric block cipher designed by Ronald Rivest, where the same key is used for both encryption and decryption. RSA, Elliptic Curve Cryptography (ECC), and El Gamal are all asymmetric (public-key) algorithms that use a mathematically related key pair - a public key for

Submitted by wei.xz· Apr 18, 2026Cryptography

Question

Options

ARSA
BElliptic Curve
CRC5
DEl Gamal

How the community answered

(46 responses)

A
7% (3)
B
2% (1)
C
87% (40)
D
4% (2)

Explanation

RC5 is a symmetric block cipher designed by Ronald Rivest, where the same key is used for both encryption and decryption. RSA, Elliptic Curve Cryptography (ECC), and El Gamal are all asymmetric (public-key) algorithms that use a mathematically related key pair - a public key for encryption and a private key for decryption. Symmetric algorithms like RC5 are generally faster, making them suitable for bulk data encryption.

Topics

#Symmetric encryption#RC5#Encryption algorithms#Cryptography fundamentals

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