Mary Queen of Scots Letters Decrypted
This is a neat piece of historical research.
The team of computer scientist George Lasry, pianist Norbert Biermann and astrophysicist Satoshi Tomokiyo—all keen cryptographers—initially thought the batch of encoded documents related to Italy, because that was how they were filed at the Bibliothèque Nationale de France.
However, they quickly realised the letters were in French. Many verb and adjectival forms being feminine, regular mention of captivity, and recurring names—such as Walsingham—all put them on the trail of Mary. Sir Francis Walsingham was Queen Elizabeth’s spymaster.
The code was a simple replacement system in which symbols stand either for letters, or for common words and names. But it would still have taken centuries to crunch all the possibilities, so the team used an algorithm that homed in on likely solutions.
EDITED TO ADD (2/13): More news.
Clive Robinson • February 9, 2023 2:20 PM
@ Bruce,
Whilst they might well be “Mary Queen” of Scots’s –rightfull heir to the throne– letters the provinence has not yet been proven.
That said they are fairly hundrum letters of often little more than an administrative nature, suggesting she had reason to think Wallsingham was intercepting her mail. But the number and range of names mentioned within suggests it’s very unlikely they are fakes, unless drawn up by a real expert in the field..