Magma programs to chapter 7 pf the book "Multivariate Public Key Cryptosystems" by Ding, Petzoldt and Schmidt using the rectangular simple matrix scheme.
load "keygen.txt" will generate the file public_key.txt and private_key.txt
load "encrypt.txt"; will generate the file "ciphertexrt.txt" by encrypting a randomly generated file
load "decrypt.txt" will then decrypt that file.
Magma programs for the original method of Matsumoto-Imai. Download the files and then in Magma use
The first program will generate the files private_key.txt and public_key.txt.
With load "LinearizationEquations.txt";. the equations are produced to break this method.
Experiment by changing the parameters.
Magma programs related to SFLASH in chapter 3 of the book by Ding, Petzoldt and Schmidt. The program was inteneded for signing a document. To run this program in Magma use
A document is generated at random. Provide your own documentn and change the parameters.
Magma programs related to chapter 6 of the book by Ding, Petzoldt and Schmidt.. a 3-pass version and a 5-pass version is given. After downloading the files use
A tactile display apparatus renders information to a user, and comprises multiple braille cells attached adjacent to each other along a predefined path, a set of pins housed within the braille cells, and a set of pin holders inserted on the braille cells. The braille cells are moved periodically at a predefined speed via a driving assembly. The pins are selectively actuated by actuators, where the linear motion of the braille cells allow the user to contact the pins to read the information represented by the arrangement of the pins. The pin holders are moved along a defined path to contact the pins, and each pin holder comprises a rigid body and multiple elastic rings attached along the rigid body. The number of elastic rings is equal to the number of pins to allow the pin holder to selectively hold or release a pin.