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.
2538Hello. In Snort, how a digital signature is actually created for the authentication purpose and thereby provides intrusion detection as well as prevention. How the software for IDS/IPS comes to know regarding the threat/vulnerability using digital signature ? Whether any specific language or programming is used or not.
1 4095Post New Encryption Decryption Questions
Actual role of cryptography is data security .Explain with real world example?
What are some other public key cryptosystems ?
What is private key cryptography and how we compare it with public key cryptography?
What is public-key cryptography ?
Is there a limit on the file size or on the number of encrypted files?
What is the rabin signature scheme?
How Encoding is different from Encryption?
What is an encryption "key" and what is the importance of key length?
What information can be obtained from encrypted file?
What is cryptographic synchronisation?
what is trapdoor and how does it works?
What is an algorithm?
What is key management ?
What is merkles tree signature scheme?
What is the elgamal cryptosystem?
