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Terrance oversees the key escrow server for his company. All employees use asymmetric cryptography to encrypt all emails. How many keys are needed for asymmetric cryptography?
Suggested Answer: A
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2
https://en.wikipedia.org/wiki/Public-key_cryptography
Public-key cryptography, or asymmetric cryptography, is a cryptographic system that uses pairs of keys: public keys, which may be disseminated widely, and private keys, which are known only to the owner. The generation of such keys depends on cryptographic algorithms based on mathematical problems to produce one-way functions. Effective security only requires keeping the private key private; the public key can be openly distributed without compromising security.
In such a system, any person can encrypt a message using the receiver's public key, but that encrypted message can only be decrypted with the receiver's private key.
41 comments · newest first
MA
Marsha
10 months ago
Yup, 2 keys for each user, that's how it works!
WA
Walker
10 months ago
Wait, are you sure it's just 2? Seems too simple.
JO
Joesph
11 months ago
I thought it might be more than that, like 4 or something.
BL
Blair
11 months ago
Totally agree, it's definitely 2 keys!
KI
Kimberlie
11 months ago
Asymmetric cryptography needs 2 keys, a public and a private one.
IR
Irene
11 months ago
I feel like there might be more keys involved, but I can’t recall any specific examples that suggest that.
AL
Alita
12 months ago
I practiced a similar question, and I believe it’s definitely two keys, but I’m worried I might be overthinking it.
FE
Felton
12 months ago
I’m not entirely sure, but I remember something about needing one public and one private key for each user.
BU
Buddy
12 months ago
I think asymmetric cryptography uses a pair of keys, so I’m leaning towards option A.
FR
Frederic
1 year ago
I remember learning that asymmetric cryptography uses a public key and a private key for each user, so the total number of keys needed would be 3 or more. I'll select option C.
WI
Wilda
1 year ago
Okay, I know asymmetric cryptography uses a public key and a private key, so that's 2 keys. But the question says "all employees" use it, so maybe there are more keys involved. I'll go with option B to be safe.
PA
Patti
1 year ago
Hmm, I'm a bit confused on this one. I thought asymmetric cryptography used more than 2 keys, but I can't remember the exact number. I'll have to think this through carefully.
CL
Claudia
1 year ago
I'm pretty sure it's 2 keys for asymmetric cryptography, so I'll go with option A.
OS
Osvaldo
1 year ago
Clearly, the answer is 2 keys. Unless Terrance is secretly a wizard, in which case it's definitely 4 keys.
DI
Dick
1 year ago
B) 4
PA
Paulina
1 year ago
A) 2
TW
Twanna
1 year ago
B) 4
IL
Ilene
1 year ago
A) 2
CA
Carman
1 year ago
I'm feeling lucky, let's go with 1 key. That's all you need, right? Just one master key to rule them all!
TI
Timmy
1 year ago
That's too many keys, you only need 2 for asymmetric cryptography.
MI
Miriam
1 year ago
B) 4
HU
Huey
1 year ago
No, you actually need 2 keys for asymmetric cryptography.
BR
Brent
1 year ago
A) 2
LA
Lachelle
1 year ago
Wait, isn't it 3 keys? One for encryption, one for decryption, and one for the secret handshake?
MA
Malika
1 year ago
A) 2
RO
Rosio
1 year ago
C) 3
TA
Taryn
1 year ago
A) 2
HY
Hyman
1 year ago
I'm not sure. I think it might be C) 3 because there's also a third key involved in the process.
FR
Francene
1 year ago
Hmm, I'm gonna go with 4 keys. Gotta have one for each element, you know? Fire, earth, air, and water!
AN
Annett
1 year ago
User 2
AN
Andra
1 year ago
User 1
TW
Twana
1 year ago
I agree with Sharita. With asymmetric cryptography, you need 2 keys - a public key and a private key.
SH
Sharita
1 year ago
I think the answer is A) 2.
ST
Stanford
1 year ago
Easy peasy, it's 2 keys! One public and one private. Duh!
MI
Mitzie
1 year ago
No, it's actually 2 keys for asymmetric cryptography
CO
Colette
1 year ago
B) 4
GL
Glenn
1 year ago
Exactly! One public and one private
BU
Buffy
1 year ago
B) 4
EL
Elroy
1 year ago
Exactly! One public and one private key
GE
German
1 year ago
A) 2 keys
FL
Florinda
1 year ago
A) 2 keys