In our day-to-day life, securing the confidential data and communicating the same to the authorized receiver are the biggest challenges. In Defense, Medical and Banking domains, the security over wireless medium should be high. SMS4-BSK is designed to provide a faster encryption with the required security over Wireless Local Area Network (WLAN). A novel SMS4-BSK architecture is proposed in this paper. The new design is implemented in Kintex 7 FPGA and it is proved that the new architecture can perform encryption and decryption faster than the existing SMS4 architectures. The proposed cryptosystem is capable of resisting cryptanalysis over Ciphertext-only attack, Known-plaintext attack, Chosen-plaintext attack, and Chosen-ciphertext attack. Finally, the possible ways of changes that can be made for improving speed are discussed.

在我们的日常生活中，保护机密数据并将其与授权接收者进行通信是最大的挑战。在国防，医疗和银行领域，无线介质的安全性应该很高。SMS4-BSK旨在通过无线局域网（WLAN）提供更快的加密和所需的安全性。本文提出了一种新颖的SMS4-BSK体系结构。新设计在Kintex 7 FPGA中实现，并且证明了新架构比现有SMS4架构可以更快地执行加密和解密。所提出的密码系统能够抵抗仅密文攻击，已知明文攻击，选择明文攻击和选择密文攻击的密码分析。最后，讨论了可以提高速度的可能更改方式。