Matt, a forensic analyst, wants to obtain the digital fingerprint for a given message. The message is 160-bits long. Which of the following hashing methods would Matt have to use to obtain this digita

The correct answer is A. SHA1. SHA-1 (Secure Hash Algorithm 1) always produces a 160-bit (20-byte) hash digest regardless of input size. This matches the stated 160-bit output requirement. MD2, MD4, and MD5 all produce 128-bit digests - not 160 bits. The output length of a hash function is fixed and algorithm-

General security concepts

Question

Matt, a forensic analyst, wants to obtain the digital fingerprint for a given message. The message is 160-bits long. Which of the following hashing methods would Matt have to use to obtain this digital fingerprint?

Options

ASHA1
BMD2
CMD4
DMD5

How the community answered

(34 responses)

A
88% (30)
B
3% (1)
C
6% (2)
D
3% (1)

Explanation

SHA-1 (Secure Hash Algorithm 1) always produces a 160-bit (20-byte) hash digest regardless of input size. This matches the stated 160-bit output requirement. MD2, MD4, and MD5 all produce 128-bit digests - not 160 bits. The output length of a hash function is fixed and algorithm-specific, making SHA-1 the only correct choice here.

Topics

#SHA1#hashing algorithms#digital fingerprint#hash output size

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