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Categories  >>  Software  >>  Cryptography  >>  Encryption Decryption        Suggest New Category      Question  Asked @ Answers Views     select   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.  0  15 What is key recovery ?  0  234 What if a certifying authority?s key is lost or compromised ?  1  400 How do certifying authorities store their private keys ?  0  204 How to find someone else?s public key ?  1  833 How should I store my private key ?  0  257 What happens if a private key is compromised ?  0  180 What happens if my key is lost ?  0  192 What happens when a key expires ?  1  368 How does one get a key pair ?  0  187 Who needs a key pair ?  2  542 What is the life cycle of a key ?  0  218 How does one find random numbers for keys ?  0  196 What key size should be used ?  1  381 What is key management ?  0  227 E-Mail New Answers        Answer Selected Questions        Post New Encryption Decryption Question    [1]   2   3   4    Next         Cryptography Algorithms Interview Questions     Digital Certificates Interview Questions     Encryption Decryption Interview Questions     Ciphers Interview Questions     Cryptography Protocols Interview Questions     Cryptography General Interview Questions     Cryptography AllOther Interview Questions       Un-Answered Questions    Question Views Asked at   Select   What is cryptographic synchronisation? 179   How can we use quantum properties in cryptography ? 54   What is public key encryption? 136   How does one get a key pair ? 187   What is exhaustive key search ? 109   What is private key cryptography and how we compare it with public key cryptography? 119   What is nonlinear cryptography? 317   why hash functions are not used for encryption but authentication ? 57   What information can be obtained from encrypted file? 129   whats cryptanalysis? 90   What is secret-key cryptography ? 1607   What is a zed encoder? How does it work? 59   What is the difference between Kryptel and Silver Key? 158   what are some of the current encryption schemes? 121   How to I prevent other users from using Kryptel (Silver Key)? 125 TCS What is meant by 1024, 2048, 5096 bit encryption? 177 ASD What is public-key cryptography ? 133   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. 15   What happens if my key is lost ? 192   What is an encryption "key" and what is the importance of key length? 147   E-Mail New Answers        Answer Selected Questions

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