Abstract We present a new propagation rule for CSS codes. Starting with code $$[\![n,k,d]\!]_q$$ [ n , k d ] q , we construct parameters $$[\![n-2,...

We propose a new class of error-correcting dynamic codes in two and three dimensions that has no explicit connection to any parent subsystem code. The two-dimensional code, which we call the CSS Floquet is geometrically similar honeycomb code by Hastings Haah, also dynamically embeds an instantaneous toric However, unlike it possesses structure its gauge checks do not form Nevertheless, show ou...

Over any discrete memoryless channel, we build codes such that: for one, their block error probabilities and code rates scale like random codes'; two, encoding decoding complexities polar codes'. Quantitatively, constants $\pi,\rho>0$ that $\pi+2\rho<1$, construct a sequence of correction with length $N$ approaching infinity, probability $\exp(-N^\pi)$, rate $N^{-\rho}$ less than the Shannon ca...

A new method for software program protection by information sharing and authentication techniques using invisible ASCII control codes is proposed. A scheme for sharing a secret source program written in Visual C++ among a group of participants, each holding a camouflage program to hide a share, is first proposed for safe keeping of the secret program. Only when all the shares hidden in the camo...