Which standard is used for digital certificates in a public key infrastructure?

2025

Which standard is used for digital certificates in a public key infrastructure?

Answer: B. X.509 — Correct answer: X.509. X.509 is the standard format for public key certificates used in PKI. It defines certificate fields such as subject, issuer, public…

  1. A.

    SHA-256

  2. B.

    X.509

  3. C.

    TLS 1.2

  4. D.

    RSA

  5. E.

    AES

Attempted by 410 students.

Show answer & explanation

Correct answer: B

Correct answer: X.509.

X.509 is the standard format for public key certificates used in PKI. It defines certificate fields such as subject, issuer, public key, validity period, and signature.

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