For those tracking the Viete, codes and Prism names line of thought,,,
http://cryptiana.web.fc2.com/code/spanish3.htm
search page for Viete
mostly letter substitution with squiggly symbols type ciphers.
Need to transcribe exactly what Drew said about it in the interview.
That Viete Colony is in Prism certainly suggests there's something there,,,,
Ulysses 31,,,there is a cipher Cp 31
Cp.31 Two-letter syllables: Base symbol
derived from the cipher alphabet + vowel indicator
Three-letter syllables: Base symbol unrelated to the cipher alphabet + Arabic numeral above to indicate the vowel.
Def:
Cp.31 A single alphabetical or other symbol with a superscript Arabic numeral, dots, etc.
Stars, planets, moon, stations
as two letters ???
pr ru di sa
me da ne eu am
ch an
vi hi
as 3 letters
pri rub dia sap
mes dae nea eur amp
chi ant
vie hir
Wouldn't seem to apply as we aren't faced with squiggles?
Ripping right off the page,,,
Viète's Codebreaking
François Viète, who started use of alphabetic symbols for quantities in algebra, performed codebreaking for Henry. He had deciphered a depatch to the Duke of Parma dated 30 December 1588 (Devos p.59, Kahn p.116).
In 1589, letters between Philip and commander Juan Moreo (who was sent to France in 1589 (Devos p.44, 328) to support the Duke of Mayenne) and ambassador Mendoza ("Mendosse" as gallicized by Viète) were intercepted and forwarded to Viète. Moreo's letter dated 28 October 1589, recommending Philip to divert the Duke of Parma's force to France, was not completely deciphered until 15 March 1590, the day after Henry's victory at Ivry. In the letter accompanying the solution, Viète said "They have changed and rechanged [their ciphers], and nevertheless have been and always will be discovered in their tricks." Viète proved the veracity of his statement by continuing to decipher despatches of Spain and other courts. (Kahn p.116-117, Pesic p.4) Possibly due to such confidence, Viète published his decipher of Moreo's letter in a pamphlet in 1590 despite the danger of inducing the enemy to change their cipher (Pesic, p.4).
In 1595, a letter in cipher from Father James Gordon, a Scots Jesuit, to Spain was intercepted and deciphered by the French, possibly by Viète (Letter of Thomas Bodley, 14 March 1595,
DCB/001/HTML/1243/008 ; see
Catholic Encyclopedia for background).
It appears Viète also deciphered a cipher (Cp.57) with the Duke of Sessa, apparently used around 1600-1601 (see
another article).
Cp.38
Cp.38 is a cipher for use with Juan Moreo. The cipher deciphered by Viète was analogous to this cipher. Its nomenclature represent common words by underlined numbers 0-99, alphabetical codes ba, be, ..., zu, bal, bel, ..., zul, bam, bem, ..., sum, and 36-98 with two dots above.