Polygraphiae by Johannes Trithemius (1518), the first printed book on Cryptography (secure communication). pic.twitter.com/tAV35Q5CZJ
— Bibliophilia (@Libroantiguo) April 5, 2016
Polygraphiae by Johannes Trithemius (1518), the first printed book on Cryptography (secure communication). pic.twitter.com/tAV35Q5CZJ
— Bibliophilia (@Libroantiguo) April 5, 2016