[1]http://groups.csail.mit.edu/mac/classes/6.805/articles/crypto/cypher
   punks/bay-area-weekly-march-14-9...
   Sent from [2]ProtonMail, encrypted email based in Switzerland.

References

   1. http://groups.csail.mit.edu/mac/classes/6.805/articles/crypto/cypherpunks/bay-area-weekly-march-14-97.txt
   2. https://protonmail.ch/