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What if a certifying authority?s key is lost or compromised ?
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Answer / dalgin augustinr
Is the organization which will generate and issues unique
digital certificate to identify an individual. The CA will
generate a pubic and private key pair and the private key
will be secret to the individual.
Its possible to compromise a private key.
When a private key of an individual known to some one else
then its compromised and losted.
| Is This Answer Correct ? | 1 Yes | 4 No |
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.
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