Question
What is the main purpose of a digital signature in
public key cryptography?Solution
A digital signature in public key cryptography is used to verify the integrity and authenticity of data. It ensures that the data has not been altered and that it was indeed generated by the claimed sender. This is achieved by using the sender's private key to sign the data.
A boy walks from his home to school at 4 km/h and returns by bicycle at 12 km/h. If the total time taken for the to-and-fro journey is 2 hours, find the...
Two cyclists start from the same point in opposite directions at speeds 12 km/h and 15 km/h. After how long will they be 81 km apart?
Ram makes four trips of equal distances. His speed on first trip was 120 km/hr and in each subsequent trip his speed was half of the previous trip. What...
A bike travels the same distance in 'h + 2.5' hours compared to a truck's 'h' hours from point 'P' to point 'Q'. Should the trip be completed in half by...
A car running with a speed of 61 km/hr takes 20 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
Before servicing, a car runs at a speed of 50 km/hr while after servicing, it runs at a speed of 60 km/h. After servicing the car covers a certain dista...
- The speed ratio of Renu and Meenu is 4:5, respectively. Renu travels a distance of 300 km from point 'A' to 'B', while Meenu covers the same distance but i...
Two person A and B from same distance with speed time and same direction with speed of 48km/hr and 40km/hr .The speed of person B increased by ½ ...
A person walks at 5 km/h to reach the office on time. If the walking speed is increased to 6 km/h, the person will reach 10 minut...
A 160 m long train overtakes another 140 m long train in 12 sec. If the speed of the slower train is 54 kmph, what is the speed of the faster train?
