Need help on DES

Networking/Security Forums -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security

Author: razer.hell PostPosted: Mon Jul 26, 2010 3:56 am    Post subject: Need help on DES
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HI,I need help on the below question.

You receive the following 64 bits (expressed in hexadecimal) containing a DES key:

7A 26 DF 9E 23 57 E6 F4

(a) What is the 56-bit DES key (expressed in hexadecimal)?
(b) List the first five (5) 48-bit round keys (in hexadecimal) that will be generated from this key.

Author: capiLocation: Portugal PostPosted: Tue Jul 27, 2010 2:12 am    Post subject:
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Sorry, we don't do homework or exercise questions here.



Networking/Security Forums -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security


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