Abstract
Security and reliability of traditional cryptographic methods for ensuring confidentiality is questionable taking into account contemporary threats (HPC, Grid technologies, quantum computing et al). Alternatively, quantum cryptography has proven itself as a more reliable information security technology. It's independent from intruder computational capability, uses specific unique properties of quantum particles, and based on quantum physics laws inviolability. However, data transmission using deterministic quantum protocol with depolarizing quantum channel is not studied today (potentially, intruder can hide his probes in this channel). From this viewpoint, the model of an intruder control mode for deterministic protocol with Bell states of qutrit pairs in the noisy depolarizing channel is developed and a simulation of this protocol in such channel is fulfilled. Also, the formula for a total probability of an error, which can arise both owing to attack, and owing to natural noise, at measurement in a intruder control mode is derived.