ISC2 ISSAP Exam - Topic 6 Question 59 Discussion

Actual exam question for ISC2's ISSAP exam

Question #: 59
Topic #: 6

Which of the following statements are true about Public-key cryptography? Each correct answer represents a complete solution. Choose two.

AData encrypted with the secret key can only be decrypted by another secret key.

BThe secret key can encrypt a message, and anyone with the public key can decrypt it.

CThe distinguishing technique used in public key-private key cryptography is the use of
symmetric key algorithms.

DData encrypted by the public key can only be decrypted by the secret key.

Show Suggested Answer

Suggested Answer: B, D

widely distributed. A message encrypted with a recipient's public key cannot be decrypted by anyone except the owner of that key and the

person associated with the public key used. This is used for confidentiality. A message signed with a sender's private key can be verified by

anyone who has access to the sender's public key.

Answer options A and C are incorrect. Because of the asymmetric behavior of the keys, the secret key can encrypt a message, and anyone

with the public key can decrypt it. The distinguishing technique used in public key-private key cryptography is the use of asymmetric key

algorithms because the key used to encrypt a message is not the same as the key used to decrypt it.

by Nana at Oct 24, 2022, 01:46 AM

Limited Time Offer

25%

Off

Get Premium ISSAP Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Garry

4 months ago

Wait, can anyone explain why A is wrong?

upvoted 0 times

...

Lai

4 months ago

Totally agree, D is the right answer!

upvoted 0 times

...

Tammy

4 months ago

I thought symmetric keys were used in public-key cryptography?

upvoted 0 times

...

Yuette

4 months ago

A is misleading, it's actually the opposite.

upvoted 0 times

...

Judy

4 months ago

D is definitely true!

upvoted 0 times

...

Tamekia

5 months ago

I’m confused about B; it sounds like it could be true, but I thought only the private key could decrypt messages encrypted with the public key.

upvoted 0 times

...

Rolland

5 months ago

I practiced a similar question where the public key encrypts and the private key decrypts. So, I feel confident about D being correct.

upvoted 0 times

...

Dalene

5 months ago

I’m not entirely sure, but I think A is related to symmetric key cryptography, not public-key.

upvoted 0 times

...

Ailene

5 months ago

I remember that in public-key cryptography, the public key is used for encryption, and the private key is for decryption. So, I think D might be true.

upvoted 0 times

...

Celestina

5 months ago

Hmm, this looks like a tricky one. I think I'll try using breakpoints and the Watch function to step through the code and see where the unexpected value is coming from.

upvoted 0 times

...

Mari

5 months ago

Alright, I've got this. The default vulnerability policy in Prisma Cloud Compute is to alert on all vulnerabilities, regardless of severity. I'm confident that's the correct answer.

upvoted 0 times

...

Tyra

5 months ago

This seems like a straightforward question about inventory management. I'll focus on understanding the key concepts of safety stock and when it's used.

upvoted 0 times

...

Dallas

5 months ago

I seem to remember a practice question mentioning use cases for session storage, and Table Store came up as a valid option.

upvoted 0 times

...