The Model of Parallel Processing of Messages Buffered in the Shared Memory

The use of chained block cifer mode makes it possible to increase the reliability of making decisions about the integrity and authenticity of messages in the conditions of a limited size of the message authentication code. Such solutions require independent implementation of procedures for decoding incoming data packets to authenticate multiple remote sources. It is proposed to use indirect addressing in order to increase the processing speed of incoming packets and to reduce the amount of internal buffer memory. The initial packet data is stored in a common large-capacity buffer, and the decoding results, descriptors of the generated message chains are stored in a separate memory of a smaller capacity. In this case, decoding for each source takes place on a separate computing core. Mathematical modeling has shown that the proposed computer configuration provides a performance increase of up to 0.9 message authentication code extraction operations with a reasonable number of computing modules of 7–10. The operation of the independent computing modules in a quasi-multitasking mode ensures the processing of messages from 10 remote sources without significant loss in performance of the authentication receiver