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???
06/04/05 20:01
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#94348 - I expected that...
Responding to: ???'s previous message
Of course the answer is wrong, but what is the result of encypher exactly?
Or, even better, give the result of each round.

When I am debugging algorithms such as these, I always write a counterpart of the algorithm on PC and try to go and compare step-by-step. So it is interesting to see the result of sum, y and z after the first round and compare it to that obtained on PC.

Btw. you can still use my asm implementation from the codelibrary, if you know how to use asm in C.

Jan Waclawek

PS. Endianness should not be an issue if the encryption and decryption is done on a machine with the same endianness. Nevertheless, there are too many pitfalls in implicit retyping and pointer conversion in C...



List of 30 messages in thread
TopicAuthorDate
TEA            01/01/70 00:00      
   Endianess            01/01/70 00:00      
      Any recommendations?            01/01/70 00:00      
         Assess your requirements            01/01/70 00:00      
         Test vectors            01/01/70 00:00      
      platform-dependent            01/01/70 00:00      
   Why TEA?            01/01/70 00:00      
      Did you Mean DES            01/01/70 00:00      
         Yes, DES            01/01/70 00:00      
            Here it is            01/01/70 00:00      
               It would be better            01/01/70 00:00      
                  Go here!            01/01/70 00:00      
               And what is your result?            01/01/70 00:00      
                  Not right?            01/01/70 00:00      
                     I expected that...            01/01/70 00:00      
                        Here are the results I am gettng            01/01/70 00:00      
                           Michael is right:            01/01/70 00:00      
                              MS Visual C.            01/01/70 00:00      
                           Recipe for success            01/01/70 00:00      
                              problem with "standard implementation"..            01/01/70 00:00      
                                 Example for the user            01/01/70 00:00      
                                    like this?            01/01/70 00:00      
                                       What else?            01/01/70 00:00      
                                          ???            01/01/70 00:00      
                                             I noticed that            01/01/70 00:00      
                                       Statics init to zero            01/01/70 00:00      
               Code Problems            01/01/70 00:00      
   Didn't search first?            01/01/70 00:00      
   It's easy?            01/01/70 00:00      
      Useful fast shift and roll functions            01/01/70 00:00      

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