Secure Symmetric Block Cipher Design for Encrypting the Bitcoin Wallets in Cryptocurrencies Applications

Omar A Dawood,Othman I Hammadi,Falath M Mohammed

doi:10.3844/jcssp.2019.758.768

Abstract

This paper proposes a new symmetric secret-key cipher for construction of block cipher model. This new approach is considered as a smart step that can be applied to the long process research of modern designing methods used in developing earlier symmetric algorithms. The present cipher can encrypt block lengths of 128-bit by employing Substitution-Permutation Network (SPN) structure. The present cipher uses three options of strong ciphering-key along with variable lengths of 192-bit for 12 rounds, 128-bit for 10 rounds and long ciphering key of 256-bit for 14 rounds similar to standard ciphers. The proposed algorithm has been designed to trust applications that are based on Bitcoin and crypto-currencies. The current algorithm intended to encrypt addresses of Bitcoin wallet that work quite similar to the e-mail address. The bitcoin wallet includes sensitive information like private secret keys and derived password that are highly confidential. The Advance Encryption Standard (AES) is employed to encrypt most of the bitcoin wallet database. The proposed cipher can act as a good substitute for the standard cipher that allows trusting the Bitcoin wallet database with high security and with a much more complex scheme. The key goal of the submitted algorithm is to build a new enhanced modern cipher with a secure and efficient applicable algorithm that can be used for crypto currencies applications employing a wide trail design strategy.

Highlights

A humongous volume of financial transactions is carried out over the network on a daily basis that involves processing and transmitting of millions of dollars via cryptocurrency systems
The present algorithm involves a series of developments via long process research has been used by authors for several years, as its design idea as well as the internal structure rely on various block cipher models that have been historically developed and recently published, such as Euphrates cipher, Tigris Cipher and FAROQ cipher designed by (Dawood et al, 2015a; 2015b; 2015c)
The mentioned ciphers paved the way in front of design the current cipher and their work quite similar to the Advance Encryption Standard (AES) standard cipher

Summary

Introduction

A humongous volume of financial transactions is carried out over the network on a daily basis that involves processing and transmitting of millions of dollars via cryptocurrency systems. The present algorithm involves a series of developments via long process research has been used by authors for several years, as its design idea as well as the internal structure rely on various block cipher models that have been historically developed and recently published, such as Euphrates cipher, Tigris Cipher and FAROQ cipher designed by (Dawood et al, 2015a; 2015b; 2015c). These symmetric ciphers have been proposed by the same author and published recently. The developed algorithm includes three trusted layers: Non-linear layer characterised by the complement of close box C-Box, Super-Mixing (P-Box) of Linear layer with ZigzagShifting process in addition to Key addition layer

Literature Survey

Conclusion