04-10-2020, 10:00 PM
(04-10-2020, 12:33 AM)MichelleL11 wrote: You are not allowed to view links. Register or Login to view.(03-10-2020, 11:00 PM)nickpelling wrote: You are not allowed to view links. Register or Login to view.All the same, the right approach to be taking here would be to find enciphered documents from 1350-1450 and see how people actually used nulls. Having nulls in the cipher key is no help at all in understanding cipher practices.
Yes, l agree. Any thoughts on sources?
Although it does strike me as a possible thesis in historic cryptography - “The Use of Nulls in 15th Century Ciphers” - although l’m a little concerned you’d have to expand at least into the 16th Crntury to have enough material for a decent degree defense!
If you are doing research and travelling to Italy there are lots of sources you can explore. Generally I have found it harder to locate original enciphered letters as opposed to cipher keys even when keys were generated from enciphered letters. However there are still a significant number of examples of enciphered letters.