1. 2013-11-08

    乱数の話(18年前)

    1995年ですから、もう20年近くになります。当時、トランジスタ技術で、PIC16F84が紹介されました。

    PIC16F84

    PIC16F84は DIP 18-binのMCUです。ROMにプログラムを書き込んで実行させます。

    今時のArduinoみたいな話、といったら少しは伝わるでしょうか。

    LEDをチカチカさせるとか、圧電スピーカを鳴 …

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  2. Running NIST STS 2.1.1 on NeuG True RNG (3)

    NeuG 0.11 was released.

    With standalone NeuG device of FST-01, I gathered 500 files of 125MB (=1,000,000,000 bits, that is for 1,000 samples of 1,000,000-bit sequence).

    Then, I ran the test suite over 500 files, while a single file has 125MB. All parameters …

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  4. Using GPG's authentication key for SSH access

    By default, GnuPG --gen-key creates a primary key for signature and its subkey for decryption. It is also possible to add another subkey for authentication.

    It is not widely used, but, the authentication subkey can be used for SSH, and this is really convenient.

    Obvious benefit is to enable consolidation …

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