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LSQ1GV24適配器SPI加密與動態溫控逆向攻堅

2025-05-01提問
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最佳答案

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核心破解方案:

  1. 動態溫控逆向‌:原廠采用FPGA實時解析NTC數據並調整開關頻率(溫度每升10℃降頻15kHz),需在第三方電源MCU中植入等效算法模塊;
  2. SPI滾動加密破解‌:適配器需在40ms內響應0x55指令並返回SHA-3算法生成的128位動態密鑰,可通過STM32F4係列模擬握手協議(關鍵時序窗口位於0x55-0x5F地址段);
  3. 高頻噪聲抑製‌:輸出端需部署三級濾波(100μF電解電容+10Ω/2W阻尼電阻+100nF陶瓷電容)配合鐵矽鋁磁環(250kHz頻點衰減>18dB)。

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