La biblia de los códigos secretos

They are everywhere: on your credit card, on your mobile or on your modem. It is about the secret codes, a procedure as old as Homer, who already used them. Caesar, he adored them. They were also used by the Templars or Henry IV, who abused the codes in his love correspondence. They have caused wars, won battles and put the United States in a difficult situation (remember the Snowden case). They have influenced the development of commerce, they were present in palace intrigues... In these lines you will find: zigzag cipher, purple code, Alberti discs, the probable word of Bazeries, the Gripenstierna cylinder, Enigma, pierceable masks, Vernam, the RSA system, and a few more. We present the essential work to decipher mysteries. It is eminently practical, in each chapter you will find an explanation and a proposal to solve or translate different texts from the key explained.