Help with signing messages

[Esteban Bordon]

Hi all,

I trying to make a notification system that reads messages from sqlite3
database and show them via dbus notifications. I want to store a hash of the
message inside the db to verify each message before show it, but I don't
know how I do it.

I think sign the message using sig01 of bios-crypto but I don't know how I
can verify this hash. Can I use some mfg-data tag to verify it (msg signed
with masterkey appropiate)?
Which command I have to use?

Thanks for your help

 Esteban.
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