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Isaca Exam CDPSE Topic 10 Question 55 Discussion

Actual exam question for Isaca's CDPSE exam
Question #: 55
Topic #: 10
[All CDPSE Questions]

Which encryption method encrypts and decrypts data using two separate yet mathematically connected cryptographic keys?

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Suggested Answer: C

Asymmetric encryption, also known as public-key encryption, encrypts and decrypts data using two separate yet mathematically connected cryptographic keys. One key is called the public key and can be shared with anyone, while the other key is called the private key and must be kept secret. The public key is used to encrypt the data, and only the corresponding private key can decrypt it. Likewise, the private key can be used to sign the data, and only the corresponding public key can verify it. This method provides confidentiality, integrity, authentication and non-repudiation for data.


by Tomoko at Sep 17, 2024, 11:12 PM

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Lynelle
7 months ago
Ah, the age-old battle between symmetric and asymmetric encryption. It's like choosing between a handshake and a fist bump – both get the job done, but one's just more fun.
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Audry
6 months ago
I like the idea of using two separate keys for encryption, it adds an extra layer of security.
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Jeannine
6 months ago
Symmetric encryption is like sharing the same key to unlock a treasure chest, simple and effective.
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Kate
6 months ago
I prefer asymmetric encryption, it's like a secret code only certain people can crack.
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Herman
7 months ago
Hashing? Nah, that's more like hiding your secrets in plain sight. Give me that asymmetric encryption any day!
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Glen
7 months ago
I'm not sure, but isn't asymmetric encryption the one where you need a secret decoder ring to figure out the keys? Sounds like a spy movie to me!
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Lynda
6 months ago
Joanna: Yes, one for encryption and one for decryption.
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Nilsa
6 months ago
User 3: So it's like having two separate keys that work together to keep the data secure.
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Rodolfo
6 months ago
User 2: Yes, asymmetric encryption uses a public key for encryption and a private key for decryption.
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Anjelica
6 months ago
User 3: So, asymmetric encryption uses two keys?
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Joanna
6 months ago
That's correct!
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Melda
6 months ago
Asymmetric
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Novella
7 months ago
Asymmetric
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Carisa
7 months ago
I'm not sure, but I think D) Symmetric encryption uses the same key for both encryption and decryption.
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Felicitas
7 months ago
I agree with Charolette, asymmetric encryption uses two keys for encryption and decryption.
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Charolette
8 months ago
I think the answer is C) Asymmetric.
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Arlette
8 months ago
Symmetric encryption? Really? That's so last century. C'mon, let's get with the times and go for asymmetric encryption!
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Sueann
7 months ago
True, but for most modern applications, asymmetric encryption is the way to go.
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Hubert
7 months ago
Symmetric encryption may be old school, but it still has its uses in certain situations.
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Lashaunda
7 months ago
I agree, using two separate keys just makes it harder for hackers to crack.
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Tawanna
7 months ago
Asymmetric encryption is definitely the way to go. It's much more secure.
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Karrie
8 months ago
Asymmetric encryption seems like the obvious choice here. I mean, who doesn't love the idea of keeping their data secure with two keys?
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Gilma
7 months ago
Definitely, using two keys for encryption and decryption adds an extra layer of protection.
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Willow
7 months ago
I agree, asymmetric encryption is the way to go for double the security.
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