Which cryptographic property is MOST important to ensure in a digital certificate?
Non-repudiation
Perfect forward secrecy
Confidentiality
Trust chain validation
The correct answer is Trust chain validation. Trust chain validation is the most important property for digital certificates as it establishes that a certificate has been issued by a trusted authority and that each certificate in the chain of trust is valid and uncompromised. Without a valid trust chain, the certificate cannot be reliably used for security functions.
Non-repudiation is incorrect because while important, this is a property provided by digital signatures, not specifically by the certificate itself.
Confidentiality is incorrect because digital certificates don't directly provide confidentiality.
Perfect forward secrecy is incorrect because this is a property of certain key exchange protocols, not of digital certificates.
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