Discuss ISC2 ISSAP Exam Topic 6 Question 59

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.

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.

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13 comments · newest first

Garry 11 months ago

Wait, can anyone explain why A is wrong?

Lai 11 months ago

Totally agree, D is the right answer!

Tammy 12 months ago

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

Yuette 12 months ago

A is misleading, it's actually the opposite.

Judy 12 months ago

D is definitely true!

Tamekia 1 year 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.

Rolland 1 year ago

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

Dalene 1 year ago

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

Ailene 1 year 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.

Celestina 1 year 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.

Mari 1 year 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.

Tyra 1 year 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.

Dallas 1 year ago

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

ISC2 ISSAP Exam - Topic 6 Question 59 Discussion