A simulation program

The simulation program gives you the encrypted message, corresponding to a clear inkeyed key and a clear inkeyed message of 127 bits each. It runs under DOS.

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Click here to download the program.

How to use this 127 bits simulation program ?

  1. select an algorithm ("SED63/30 direct key" stands for "cypher the MESSAGE by first applying DLM in base 63, then DLM in base 30 using the DIRECT KEY")
  2. key in the MESSAGE you want to cypher (select PRECEDING RESULT to take over the result of a preceding step)
  3. key in the DIRECT KEY
  4. EXECUTE (to be found on the bottom line)
  5. select ONCE AGAIN to proceed to a new cyphering with data from a previous one.