We investigate the wiretap channel in the presence of action-dependent states and noiseless feedback. Given the message to be communicated, the transmitter chooses an action sequence that affects the formation of the channel states and then generates the channel input sequence based on the state sequence, the message, and the noiseless feedback, where the noiseless feedback is from the output o...

In this paper, we investigate the model of wiretap channel with action-dependent channel state information. Given the message to be communicated, the transmitter chooses an action sequence that affects the formation of the channel states, and then generates the channel input sequence based on the state sequence and the message. The main channel and the wiretap channel are two discrete memoryles...

We present a cipher that represents a novel strategy: replacing algorithmic complexity with computational simplicity while generating cryptographic e cacy through large as desired quantities of randomness. The BitFlip cipher allows its user to defend herself with credibly appraised mathematical intractability, well-hinged on solid combinatorics. This is the situation when the amount of randomne...

We consider the problem of rate–R channel coding with causal/non–causal side information at the transmitter, under an additional requirement of minimizing the amount of information that can be learned from the channel output about the state sequence, which is defined in terms of the equivocation E (i.e., the mutual information between the state sequence and the channel output sequence). A singl...

The secrecy capacity region for the K-receiver degraded broadcast channel (BC) is given for confidential messages sent to the receivers and to be kept secret from an external wiretapper. Superposition coding and Wyner’s random code partitioning are used to show the achievable rate tuples. Error probability analysis and equivocation calculation are also provided. In the converse proof, a new def...

Attention to epistemological relationships between Indigenous and local knowledges (ILK) conservation science is increasing. Some approaches for doing so have been developed, but in general, serious engagement ILK still feels experimental does not broad uptake. Here we address some of the main issues that arise when considering or ecological science. A key issue relationship sets expectations h...

We consider the problem of estimating the probability of error in multi-hypothesis testing when MAP criterion is used. This probability, which is also known as the Bayes risk is an important measure in many communication and information theory problems. In general, the exact Bayes risk can be difficult to obtain. Many upper and lower bounds are known in literature. One such upper bound is the e...