Cold multi-currency wallet on the platform MKT
The paper is exploring the concept of implementing multi-currency secure cold wallet on the basis of the microcomputer with dynamically variable architecture MKT. This device is based on the new Harvard architecture, a modification of the classic Harvard architecture, using immutable memory (to ensure the integrity and immutability of the operating system) and session memory blocks (to ensure the correct operation of the software). The paper describes the work mechanism of blockchain and blockchain transactions, the basic principles of cryptocurrency storage. The implementation of the system algorithm for offline signing of transactions and protocols that provide a hierarchical key generation based on HD Wallet technology are reviewed. It is proposed to divide the functionality of the multi-currency wallet into two groups intended for execution either in the operating system that is read-only or available both for reading and writing. The scenario of execution of the working cycle of the designed system is described. Keywords: New Harward architecture, dynamically variable architecture, blockchain, offline transaction signature, HD wallet.