I uploaded a new article "Spanish Codebreaking under Phillip II", focusing on Luis Valle de la Cerda and mentioning three others.
I planned this article some years ago when I saw Marcos (2014), but had difficulty in reading the Spanish text. Now I have come to know sources in English and French, which allowed finishing this article (helped by much improved machine translation since then).
As a byproduct, I added the following entries in "Unsolved Historical Ciphers":
Venetian Letter in Spanish Archives (ca.1589)
Fragments in Novel Cipher Invented by a Milanese (ca.1599)
Right after uploading, I found the original manuscript source online. Please be patient for some time until I make updates accordingly.
ReplyDeleteNow I have made the updates.
ReplyDeleteRelated changes have been made in
"French ciphers during the Reign of Henry III of France" (Duke of Anjou's cipher; use of Longlee's cipher in 1590)
"Spanish Ciphers during the Reign of Ferdinand and Isabella" (Cipher (ca.1506) broken by Luis de la Cerda in 1599)
"Unsolved Historical Ciphers"