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SSCP · Question #1117

MD5 is a ___________ algorithm

The correct answer is A. One way hash. MD5 is a cryptographic hash function that produces a fixed-size output, making it a one-way hash algorithm used for data integrity checks.

Submitted by rachelw· Apr 18, 2026Cryptography

Question

MD5 is a ___________ algorithm

Options

  • AOne way hash
  • B3DES
  • C192 bit
  • DPKI

How the community answered

(45 responses)
  • A
    93% (42)
  • C
    2% (1)
  • D
    4% (2)

Why each option

MD5 is a cryptographic hash function that produces a fixed-size output, making it a one-way hash algorithm used for data integrity checks.

AOne way hashCorrect

MD5 (Message-Digest Algorithm 5) is a widely known cryptographic hash function designed to take an input of arbitrary length and produce a fixed-size, 128-bit hash value, which is computationally difficult to reverse-engineer to find the original input.

B3DES

3DES (Triple Data Encryption Standard) is a symmetric-key block cipher, not a hash algorithm.

C192 bit

While MD5 produces a 128-bit hash, "192 bit" refers to a specific key size often associated with symmetric encryption, not a type of algorithm itself.

DPKI

PKI (Public Key Infrastructure) is a system for creating, managing, distributing, and revoking digital certificates, not a specific hashing algorithm.

Concept tested: Cryptographic hash functions

Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/hashing-with-md5-and-sha

Topics

#MD5#Hashing#Cryptographic Algorithms#One-way function

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