polyalphabetic Archives - Anton Hoyer

Pendulo

Anton Hoyer — Wed, 29 May 2024 20:00:00 +0000

Introduction True randomness, as unachievable as it seems, would revolutionize the world of cryptography because attackers could no longer make predictions. Forget the pseudo-random number generators that rely on timing and user hardware, as they are not cryptographically secure. Better are systems based on physical processes, for example, radioactive decay or filming 100 lava lamps […]

The post Pendulo appeared first on Anton Hoyer.

Bridgeman

Anton Hoyer — Fri, 21 Apr 2023 20:00:00 +0000

This encryption method is based on a standard deck of 52 cards and can be used with pen and paper or a computer. The default order of the deck is clubs (♣), diamonds (♦), hearts (♥), spades (♠). Within each suit, the cards are ordered as ace (A), two (2), three (3), four (4), five (5), six (6), seven (7), eight (8), nine (9), ten (0), jack (J), queen (Q), king (K). […]

The post Bridgeman appeared first on Anton Hoyer.

Lexigraph

Anton Hoyer — Fri, 19 Aug 2022 20:00:00 +0000

This symmetric encryption method is based on a dictionary, technically making it a nomenclator cipher. In fact, any digital dictionary can be used, the larger the better. I work with one that consists of several smaller dictionaries from various sources and contains 466,480 words in total. Consequently, the resulting ciphertexts are a jumble of different […]

The post Lexigraph appeared first on Anton Hoyer.