#6461: Schaefer's Simplified Data Encryption Standard for educational purposes
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 Reporter:  mvngu         |       Owner:  somebody                
     Type:  enhancement   |      Status:  new                     
 Priority:  major         |   Milestone:                          
Component:  cryptography  |    Keywords:  cryptography, DES, S-DES
 Reviewer:                |      Author:                          
   Merged:                |  
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 This is a follow-up to #6164. The goal here is to implement the S-DES
 block cipher of Schaefer as described in the paper:

  E. Schaefer. A simplified data encryption algorithm. Cryptologia,
 20(1):77--84, 1996.

 This is a simplified variant of the Data Encryption Standard (DES) to be
 used for cryptography education.

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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6461>
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