Question: DES and public key algorithm are combined </br> (i) to speed up encrypted message transmission </br> (ii)to ensure higher security by using different key for each transmission </br> (iii) as a combination is always better than individual system </br> (iv) as it is required in e-Commerce </br>
Answer:
MCQ: DES and public key algorithm are combined </br> (i) to speed up encrypted message transmission </br> (ii)to ensure higher security by using different key for each transmission </br> (iii) as a combination is always better than individual system </br> (iv) as it is required in e-Commerce </br>
Correct Answer:
A. i and ii
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Related Questions
- 1. A digital signature is
- 2. A digital signature is required </br> (i) to tie an electronic message to the sender’s identity </br> (ii)for non repudiation of communication by a sender </br> (iii) to prove that a message was sent by the sender in a court of law </br> (iv) in all e-mail transactions </br>
- 3. A hashing function for digital signature </br> (i) must give a hashed message which is shorter than the original message </br> (ii)must be hardware implementable </br> (iii) two different messages should not give the same hashed message </br> (iv) is not essential for implementing digital signature</br>
- 4. Hashed message is signed by a sender using
- 5. While sending a signed message, a sender
- 6. The responsibility of a certification authority for digital signature is to authenticate the
- 7. Certification of Digital signature by an independent authority is needed because
- 8. The Secure Electronic Transaction protocol is used for
- 9. In SET protocol a customer encrypts credit card number using
- 10. In SET protocol a customer sends a purchase order
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