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  • Cryptobook

    From Stefan Claas@21:1/5 to All on Tue Feb 27 18:32:14 2024
    Hi all,

    gemini://cryptobook.cities.yesterweb.org/

    The above URL is a guestbook on Geminspace,
    where users can leave an encrypted message.

    For Linux there is elpher (emacs) or the beautiful
    Lagrange client, besides others, available.

    As username you may choose a hexadecimal IV, nonce, tweak
    or whatever you call it and then for the message a hex
    encoded string in one line.

    Be the first to submit an entry and post the hex key here,
    so that we can decrypt the message and let us know what
    software you use.

    I put later an entry in, with FPE (Format Preserving Encryption)
    which should do the job well, hopefully, because I do not know
    what the max. line lenght of guestbook entries are.

    https://github.com/stefanclaas/ff1

    Regards
    Stefan
    --
    ----Ed25519 Signature---- bf4cbfa5737b4d1e7f423f5dafa6378cf227fb3c816f4ce05796f8af171f147b 509782d992ff9926bb99d956300c4ef2fc5b38714b5f23a4017fd05027c8ef02

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Stefan Claas@21:1/5 to Stefan Claas on Tue Feb 27 18:49:56 2024
    Stefan Claas wrote:

    I put later an entry in, with FPE (Format Preserving Encryption)
    which should do the job well, hopefully, because I do not know
    what the max. line lenght of guestbook entries are.

    https://github.com/stefanclaas/ff1

    Ok, The cryptobook accepted the Username length of the nonce and
    hex message. :-)

    Here is the key:

    406c7d05dc28874123461b2a1b636acc85745238137b0844bc1363e4d7c827f6

    Regards
    Stefan
    --
    ----Ed25519 Signature---- ee6430db6033e954ef34410eb05aa850c7aaa3eb631bc0d13659353ce414fb3e 7445666590fa78fe2a4a197feb8b6a09ace867355cbeae04faf0e5adfe02000d

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)