Is DES available in software?

1713

What are "stream" and "block" ciphers?

1998

What are the benefits of blockchain that you know?

5

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.

3514

What are your biggest hopes and fears regarding the future of this technology?

1

What is a fail-stop signature scheme ?

3049

Why do we need decentralized systems? Benefits of blockchain technology?

1

How are certifying authorities susceptible to attack ?

2013

What role does NIST play in cryptography?

918

What challenges information leak can impose on an organization?

5

How does the length of a hash value affect security?

910

What is the principle on which blockchain technology is based on?

5

Why is blockchain a trustworthy approach?

1

What is the discrete log problem?

978

Does gas price determine when a transaction is processed?

1