Answer Posted / ramkumar
If your private key is lost or destroyed but not
compromised, you can no longer sign or decrypt messages,
but anything previously signed with the lost key is still
valid. The CA (see Question 4.1.3.12) must be notified
immediately so that the key can be revoked and placed on a
certificate revocation list (see Question 4.1.3.16) to
prevent any illegitimate use if the key is found or
recovered by an adversary. Loss of a private key can
happen, for example, if you lose the smart card used to
store your key, or if the disk on which the key is stored
is damaged. You should also obtain a new key right away to
minimize the number of messages people send you that are
encrypted under your old key, since these can no longer be
read.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What information can be obtained from encrypted file?
What is nonlinear cryptography?
What are the advantages of public-key cryptography compared with secret-key cryptography?
A company wants to transmit data over the telephone, but it is concerned that its phones may be tapped. All of its data is transmitted as four-digit integers. It has asked you to write a program that will encrypt its data so that the data may be transmitted more securely. Your script should read a four digit integer entered by the user in a prompt dialog and encrypt it as follows: Replace each digit by (the sum of that digit plus 7) modulus 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then output XHTML text that displays the encrypted integer.
What is a zed encoder? How does it work?
What is the elgamal cryptosystem?
What is public key encryption?
What is the difference between a message authentication code (MAC) and a one-way hash?
What is decryption?
what is pretty good privacy?
Actual role of cryptography is data security .Explain with real world example?
WHAT IS A SAMPLE USER INTERFACE OF DES ENCRYPTION/DECRYPTION PROJECT?
What are the disadvantages of public-key cryptography compared with secret-key cryptography?
What is an algorithm?
what are some of the current encryption schemes?
