RC5DES: No more lost blocks

The RC5DES encryption cracking contest has a BeOS client. Unfortunately, this client will drop partially completed blocks when it is restarted unless you create a checkpoint file:

  1. Start the rc5des client with the -config option.
  2. Choose option 1) from the menu : Block and Buffer Options
  3. Choose option 10) from this menu : Checkpoint Filename
  4. Enter a name for the checkpoint file (such as rc5.cp)
  5. Return to the main menu
  6. Exit and save settings

Now start the rc5des client. The next time you stop it, it will save its current data to the checkpoint file so that next time it’s restarted it continues from where it left off. No more lost blocks!

 

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