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].