1. How can I install Gnuk on FST-01 with NeuG 1.0.5?

    Q: I got another FST-01 with NeuG 1.0.5 installed. As I need Gnuk Token, I want to reflash. How can I install Gnuk without SWD debugger?


    SWD debugger is not the absolute requirement, since NeuG supports firmware upgrade.

    However, please note that the feature of firmware upgrade …

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  2. NeuG, a True Random Number Generator Implementation

    NeuG, True Random Number Generator

    NeuG is an implementatio of True Random Number Generator, based on the sampling noise of ADCs (A/D converters).

    It runs on STM32F103, and it outputs random bits at the rate of more than 80 kB/sec (kB = 1000-byte). The interface is USB, and it behaves as a device of …

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  3. More Entropy, Please

    This was originally a story written to my imaginary/sworn(?) elder sister and her daughter in Singapore.

    It began with "Hello, ..., It's long time since..."

    NOTE: In this article, we discuss a possible side channel attack (of gniibe). Although we discuss the vulnerability by an …

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