This paper presents a novel modification of integer arithmetic code, which performs compression and encryption at the same time. It is quite different from the randomized arithmetic code (RAC), the ...

A novel secure arithmetic image coding algorithm based on Two-dimensional Generalized Logistic Mapping is proposed. Firstly, according to the digital image size m×n, two 2D chaotic sequences are ...

The encoding and decoding algorithms perform arithmetic operations on the code string. One recursion of the algorithm handles one data symbol. Arithmetic coding is actually a family of codes which ...

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In [2], HAI et al. presents a new implementation of bit-level arithmetic coding by the use of integer additions and shifts. The new algorithm has less computation complexity and is more flexible to ...

The RSA algorithm is a feast of genius that combines theoretical math and practical coding into working asymmetric cryptography. Here’s how it works.