Welcome to JBO Software
JBO produces a small range of products and some of these are of a specialist nature. Our products are designed to performs tasks for which no similar product exists, and to make life easier for persons interested in classical cryptography and cryptanalysis. We do not offer programmes that claim to automatically decrypt any and all encrypted messages - the objective is to demonstrate how the classical ciphers work rather than providing easy answers to those who make no effort. Our other products include web design software and some games for when the work is done. Additionally, we provide cursors (mouse pointers) for left-handed persons.

Classic Cryptanalysis File Stripper Data Extractor Frequency Analysis Sequence Analysis Caesar Shift Cipher Transposition Cipher Substitution Cipher Vigenère Cipher

Neo-Classical Cryptography Catflap Cipher Giova Cipher Giova X Cipher Xia Cipher Xia B Cipher Zeta Cipher The Zeta Challenge

Popular Software Site Developer 2 Poker Dice Entertainment Centre SpeakEasy 121 Cursors & Fonts

Academic Software Concordancer Zener ESP

NEWS:
SpeakEasy 121 - updated version available from 20.08.2007
Latest update to Site Developer 2 available 28.06.2007

All of our products are freeware - download and enjoy, with our compliments.
Website design and content © JBO Software 2000 - 2008