Question
Consider the following statements regarding digital
signatures under the IT Act, 2000: 1. A digital signature uses an asymmetric crypto system. 2. A digital signature must involve a hash function. 3. The private key and public key together constitute a key pair unique to the subscriber. Which of the statements given above are correct?Solution
Section 3 of the IT Act defines digital signatures as authentication using an asymmetric cryptosystem and a hash function. Asymmetric cryptography necessarily involves a mathematically linked public key and private key, collectively known as a key pair, which is unique to the subscriber. The hash function ensures integrity of the electronic record by converting data into a fixed-length hash value. Since all three statements accurately describe statutory and technical elements of a digital signature, option D is correct.
A bag contains 400 coins of 25p denomination and 800 coins of 50p denominations. If 14% of 25p coins and 28% of 50p coins are removed, the percentage of...
A company allowed 16% commission on the total sales made by the salesman and a bonus of 1% on the sales over Rs.25000. If the salesman deposited Rs. 66...
A gave 60% of amount to B. B gave 20% of amount received from A to C. If amount received by C from B is Rs.192, then find the amount received by B from A.
What is 25% of 480?
Suresh spent 25% of his monthly salary on rent, 50% of his remaining salary on food and clothes, and saved the rest. If he saved Rs. 9,000 and the amoun...
The total income of 'P' and 'Q' is Rs. 2,00,000. 'P' spends 55% of his income, while 'Q' spends 80% of her income, such that the savings of 'Q' are Rs. ...
Monthly savings of ‘A’ is Rs. 1500 more than his monthly expenditure and his total monthly income is Rs. 4100. If his monthly income is increased by...
A man spends 30% and 18% of his monthly salary on rent and transportation, respectively. Out of the remaining money, he spends 29% on food and 44% on en...
Teena decided to donate 10% of her salary as a charity. On the day of donation she changed her mind and donated Rs 3680 which was 92...
A gets 34% of the full marks in an exam and fails by 80 marks. B gets 36% of the full marks in the same exam and he also fails by 64 marks. What is the ...