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- Encryption Decryption (58)
- Ciphers (43)

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Cryptography Interview Questions

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Un-Answered Questions { Cryptography }

What is cryptanalysis ?

What is a fail-stop signature scheme ?

How to I prevent other users from using Kryptel (Silver Key)?

How large a key should be used in RSA ?

Explain zero-knowledge proofs?

what is CBC?

What is triple-DES ?

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 are pseudo-random generators?

How is RSA used for authentication and digital signatures in practice ?

What is secret splitting?

What is RSA ?

What are typical key spaces for symmetric and asymmetric ciphers?

What is nonlinear cryptography?

Is DES available in hardware?