硬件黑客Andrew "bunnie" Huang为Defcon大会设计了具有创新功能的会议徽章，其核心是一款名为Baochip-1x的开源微控制器芯片1。这款芯片历经三年开发，采用开源RISC-V处理核心，采用TSMC 22纳米工艺制造1。芯片的大部分源代码和设计已公开在GitHub上，并支持红外光透视检查硅内部结构，突破了传统芯片的黑盒特性，允许进行晶体管级别的设计验证1。
Baochip-1x的硬件规格包括350 MHz RISC-V处理器、2MB SRAM、4MB RRAM以及4个700MHz PicoRV32核心1。根据Huang的评估，该芯片可抵挡数万美元级别的攻击，但百万美元级别的攻击可能突破其防护1。徽章采用可拆卸模块设计，参会者会后可将芯片继续作为硬件安全令牌使用，支持FIDO硬件安全令牌、基于时间的一次性密码系统和密码管理等功能1。此次Defcon大会共发放27,000个徽章，代表该芯片的首次主要规模发行1。
Hardware innovator Andrew "bunnie" Huang has designed conference badges for Defcon that incorporate Baochip-1x, a novel open-source microcontroller developed over three years 1. The chip's source code and design specifications are published on GitHub, marking a departure from the proprietary nature of conventional semiconductor devices 1. A distinctive feature of Baochip-1x is its compatibility with infrared imaging, which allows inspection of the silicon's internal structure and transistor-level design verification 1.
The microcontroller runs a RISC-V processor architecture manufactured using TSMC's 22-nanometer process 1. Technical specifications include a 350 MHz RISC-V processor, 2MB of SRAM, 4MB of RRAM, and four 700MHz PicoRV32 cores 1. According to Huang, the chip can withstand attacks costing tens of thousands of dollars, though attacks at the million-dollar level may potentially compromise it 1.
The badge's removable module containing Baochip-1x transforms the accessory into a functional hardware security device after the conference concludes 1. The detachable component supports FIDO hardware authentication tokens, time-based one-time password systems, and password management capabilities 1. The 27,000 Defcon badges produced represent the chip's first major commercial deployment 1.
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