PrepAway - Latest Free Exam Questions & Answers

which of the following?

An X.509 public key certificate with the key usage attribute “non-repudiation” can be used for which of the
following?

PrepAway - Latest Free Exam Questions & Answers

A.
encrypting messages

B.
signing messages

C.
verifying signed messages

D.
decrypting encrypted messages

Explanation:
Support for two pairs of public-private keys is a fundamental requirement for some PKIs. One key pair is for
data encryption and the other key pair is for digitally signing documents.
When digitally signing a message for non-repudiation, the private key is used. The public key (with the key
usage attribute “non-repudiation”) associated with the private key is used to verify the signed messages.
Incorrect Answers:
A: An X.509 public key certificate with the key usage attribute “non-repudiation” cannot be used for encrypting
messages.
B: When digitally signing a message for non-repudiation, the private key is used, not the public key.
D: An X.509 public key certificate with the key usage attribute “non-repudiation” cannot be used for decrypting
messages.

https://docs.oracle.com/cd/E13215_01/wlibc/docs81/admin/certificates.html


Leave a Reply