Question 5 (a) part ii
Public key and private key
3 marks
- Time to write
- About 6 minutes
From an older CBCS paper
Question
Question 5 (a) part ii · 3 marks- Distinguish between the public key and the private key?
Reworded from the university paper; the task is the same. The original paper belongs to the University of Delhi. See DU's question bank.
Before you write
Read off the question and its marks
Read from the question
- Distinguish betweenSet the differences out in a table, basis by basis, not as two separate essays.
What the paper leaves open
The only copy of this paper found is cut off at the right edge of the page; the few words lost there are read from the sense and from the Hindi version of the question. The mark for this part is not legible on the copy; it is reckoned here at 9 marks, the paper's own split for its other questions. This older-course question examines the Information Technology Act, 2000, which the current UGCF Business Laws syllabus does not name; it is answered as printed. Marked as one question of 9 marks; answered here in 3 parts of 3 marks each (marks inferred).
Write it in this order
- 1 (ii) Public key and private key 3 marks 6 min
Try it first. About 6 minutes for 3 marks. Write it out, then open the solution.
Solution
Hover or tap a marked figure, like 72,000, to see how it is made and where else it appears.
(ii) Public key and private key. In an asymmetric crypto system the two keys form a key pair: the private key is the key used to create a digital signature, and the public key, mathematically linked to it, is used to verify a signature the private key has created. The private key is kept under the subscriber's control and must not be disclosed, whereas the public key is the one listed in his Digital Signature Certificate for others to use.
Where the 3 marks sit
| # | Component | Marks |
|---|---|---|
| 1 | (ii) Public key and private key | 3 |
| Total | 3 |
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