What are some of the more popular techniques in cryptography ?

1836

What is privacy ?

1131

What is IEEE P1363 ?

953

What are the most important attacks on symmetric block ciphers?

2149

What is an encryption "key" and what is the importance of key length?

997

How much extra message length is caused by using RSA?

2

What are digital certificates ?

1126

What are some of the basic types of cryptanalytic attack ?

814

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.

2362

How does the Clipper chip work?

3

Should one test for weak keys in DES ?

1208

What are the ITU-T (CCITT) Standards ?

974

How can signatures remain valid beyond the expiration dates of their keys, or, How do you verify a 20-year-old signature?

2

What are proactive security techniques ?

1518

What is a hard problem ?

1010