200-201 · Question #516
Refer to the exhibit. The figure shows an X.509 certificate. Which field represents the digital cryptographic algorithm used by the issuer to sign the certificate?
The correct answer is A. Signature Algorithm. In an X.509 certificate, the "Signature Algorithm" field specifies the cryptographic algorithm employed by the Certificate Authority (CA) to digitally sign and verify the certificate's authenticity.
Question
Refer to the exhibit. The figure shows an X.509 certificate. Which field represents the digital cryptographic algorithm used by the issuer to sign the certificate?
Exhibit
Options
- ASignature Algorithm
- BTimestamp
- CFingerprints
- DLog Operator
How the community answered
(53 responses)- A94% (50)
- B4% (2)
- D2% (1)
Why each option
In an X.509 certificate, the "Signature Algorithm" field specifies the cryptographic algorithm employed by the Certificate Authority (CA) to digitally sign and verify the certificate's authenticity.
The "Signature Algorithm" field within an X.509 certificate explicitly indicates the cryptographic algorithm (e.g., SHA256withRSA) used by the issuing Certificate Authority (CA) to create the digital signature that verifies the certificate's authenticity and integrity.
A timestamp indicates when an event occurred, such as certificate issuance or expiration, not the signing algorithm.
Fingerprints (or thumbprints) are unique hashes of the entire certificate used for quick identification, not the signing algorithm itself.
"Log Operator" is not a standard field in an X.509 certificate that describes the signing algorithm.
Concept tested: X.509 certificate fields
Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/x-509-certificates
Topics
Community Discussion
No community discussion yet for this question.