3 results about "Cryptanalysis" patented technology

The application discloses a kind of data storage integrity verification system and method based on polynomial ring, it is related to data security technical field.The system includes data encoding module, base generating module, standard value library and measurement module;Data encoding module is used to convert the data to be verified into polynomial with the format of binary, base generating module is used to select base space and generate base using random selection method, measurement module completes the integrity verification of data by calling base generating module and standard value library, and the standard value library is used to store the standard integrity verification value of input data.The application is different from the conventional password based on mathematical problem design, and it is difficult to resist the password analysis based on artificial intelligence and quantum computing.The application only relies on mathematical principle to design integrity verification mechanism, and the data integrity verification is carried out based on the random selection of base of polynomial ring to resist various password attacks based on artificial intelligence and quantum computing, and does not depend on any mathematical problem, with unconditional security.

This invention belongs to the field of cryptanalysis technology and provides a cryptanalysis reverse attack method and system. It determines the classification of activation functions in a neural network model, including piecewise linear activation functions and piecewise nonlinear activation functions. For piecewise linear activation functions, it performs reverse attacks by achieving signature recovery with polynomial time complexity and symbol recovery with a certain time complexity on the original output and hard label settings, respectively. It also performs reverse attacks by achieving symbol recovery with polynomial time complexity on the original output of a contracted network. For piecewise nonlinear activation functions, it performs reverse attacks by achieving signature recovery with polynomial time complexity and symbol recovery with polynomial time complexity on the original output settings. This invention can recover an equivalent neural network with the same output characteristics as the original neural network through attack strategies.

Provided is an apparatus for a low CNOT count quantum point doubling circuit targeting to minimize resource consumption during quantum cryptanalysis, particularly in elliptic curve cryptography (ECC). The apparatus, according to an embodiment of this present invention, is designed to reduce the overall depth of cryptographic analysis by implementing an efficient point-doubling mechanism.