# Implementation of Simplex Channels in the Blom's Keys Pre-Distribution Scheme

## TL;DR

This paper proposes a modification to Blom's key pre-distribution scheme by introducing an asymmetrical exponential function based on three variables, considering information flow directions to improve key material formation.

## Contribution

It introduces a novel asymmetrical exponential function for key material formation in Blom's scheme, accounting for information flow directions, without increasing key material volume.

## Key findings

- The modified scheme effectively incorporates information flow directionality.
- The exponential function maintains key material volume.
- The approach enhances security and flexibility of key distribution.

## Abstract

In article the modification of the Blom's keys preliminary distribution scheme, considering the direction of information streams is suggested. For this modification it is necessary to use function from three variables. Function of formation of key materials will be the asymmetrical. The exponential form of this function which does not increase the volume of key materials is suggested.