Securing Bitcoin: Hardware Wallet Innovations

This chapter explores the technical details of Bitcoin hardware wallets, focusing on the K210 microcontroller and the importance of using accessible off-the-shelf components. It discusses the development of a next-generation multisig wallet, while also examining the challenges in hardware manufacturing, counterfeit risks, and the implications of boot processes and firmware security. The conversation highlights a protocol-based approach to security, analyzing various vulnerabilities and the design measures taken to enhance crypto security.