Attention. This page is under construction. The only valid version at the moment is the Spanish version.I present to you my latest book. It's the result of many years of research and study on the subject. It details the Enigma machines that existed in Spain, when they arrived, the role of the Spanish in Allied cryptanalysis, and much more. I hope you enjoy it. To see the table of contents in Spanish, click on the cover. You can get it by clicking on the title or here.
Antes del CNI hubo al menos dos veces en las que se criptoanalizaron las claves del Gran Capitán. Una de ellas la podéis ver en el siguiente enlace.
Fue en España donde se probaron las primeras máquinas Enigma en un ambiente bélico. El ejército nacionalista tenía dos redes de comunicaciones cifradas de alto nivel utilizando máquinas Enigma. Cada una de ellas con su propio cableado. Para ver mas pulsa en el enlace.
Novedades:
Una conferencia dada por un oficial del servicio de cifra el 28 de enero 1923. Disfrutadlo aquí.
Una conferencia dada por Marcel Givierge en 1927 (en francés). Disfrutadlo aquí.
El clásico libro de Rosario Candela (en inglés) sobre el Isomorfismo y sus aplicaciones en criptoanálisis. Disfrutadlo aquí.
Apuntes sobre cifrados polialfabéticos. Aquí.
Apuntes sobre cifrado poligráfico. Aquí.
Apuntes sobre cifrado tomográmico o fraccionario. Aquí.
El sistema ADFGVX. Aquí.
Even in cryptography, silence is golden. Lawrence Dwight Smith.
Classical cryptography is based on simple concepts that are still used in modern cryptography: substitution and transposition. However, there is a wide variety of methods that combine these concepts to create ciphers that can be very difficult to break. If you want to learn more about classical cryptography, click on the links.
The world as we know it would not exist without the concept of secrecy. Secrecy in an open communications environment cannot be achieved without the proper use of cryptography.
"The real mathematics of real mathematicians, that is to say, the mathematics of Fermat, or Euler, or Gauss, or Abel, or Riemann, is totally useless, and this is true in the case of pure mathematics as well as applied mathematics." Thomas Hardy.
Cuestiones de interés
Clave 99. Strip cipher used by the Guardia Civil until the 1960s.
Manual for the Enigma machine used by General Franco's forces in the Spanish Civil War.
Manual of the Kryha machine used by General Franco's forces in the Spanish Civil War.
Text about Enigma in Spain.
The first texts on a course in classical cryptography are in the notes section. They are divided into substitution ciphers and in transpositión ciphers.
