Digital Signatures provide which of the following?

The correct answer is C. Integrity. Digital signatures primarily provide integrity - they allow a recipient to verify that the data has not been altered in transit. A digital signature is created by hashing the message and encrypting that hash with the sender's private key. The recipient decrypts the hash with the

General security concepts

Question

Options

AConfidentiality
BAuthorization
CIntegrity
DAuthentication
EAvailability

How the community answered

(62 responses)

A
3% (2)
B
2% (1)
C
89% (55)
E
6% (4)

Explanation

Digital signatures primarily provide integrity - they allow a recipient to verify that the data has not been altered in transit. A digital signature is created by hashing the message and encrypting that hash with the sender's private key. The recipient decrypts the hash with the sender's public key and compares it to a freshly computed hash of the received message; if they match, the data is intact. Digital signatures also provide authentication and non-repudiation, but the core cryptographic service being tested here is integrity. Option A (confidentiality) requires encryption of the message itself, not signing. Option B (authorization) is an access control concept. Option E (availability) relates to uptime and redundancy.

Topics

#digital signatures#integrity#cryptography#non-repudiation

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