Ciphers Interview Questions
Questions Answers Views Company eMail

What is a one-time-pad?

1176

Are one-time pads really unbreakable?

923

What are good sources of randomness?

986




How to encrypt swap?

1028

shall we use a journalling filesystem on top of /dev/loop?

1110

How do I change the password / the cipher?

842

How to make backups?

1544

What are IP Tunnels?

1135




what is CBC?

1131

what is ECB?

1250

Is ECB cipher mode faster than CBC ?

1280

Is the IAIK-JCE implementation tested on platforms like SUN solaris, Macintosh (OS 7.5, 8.0), HP-UX (10.x)?

1466

Does IAIK support RC4 ? Is the code written the same way as for RC2 ?

892

What is a product cipher?

1342

What makes a product cipher secure?

1112


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Un-Answered Questions { Ciphers }

Is DES available in hardware?

1063


What exactly is DES?

928


Can DES be used to protect classified information?

896


shall we use a journalling filesystem on top of /dev/loop?

1110


Which of the two ciphers have the larger key space?

1347






How to make backups?

1544


What are typical key spaces for symmetric and asymmetric ciphers?

1635


How are block ciphers used to encrypt data longer than the block size?

804


Is the IAIK-JCE implementation tested on platforms like SUN solaris, Macintosh (OS 7.5, 8.0), HP-UX (10.x)?

1466


Why do you keep the name of the used cipher in the open?

1383


What are ECB, CBC, CFB, OFB, and PCBC encryption?

2447


How to prove a new block cipher, is resistant against differential cryptanalysis attack

1882


Can symmetric block ciphers be used for message authentication?

921


What are some group-theoretic properties of product ciphers?

1081


What is differential cryptanalysis?

958