PGP

You can use this PGP public key to encrypt bytes before sending them to me:

pub   rsa4096 2019-12-06 [C] [expires: 2022-12-09]
      4589 9929 BD8E 7D09 1052  9EDE 1031 CCC1 3455 2258
uid           [ultimate] Marco Agner <[email protected]>
sub   rsa4096 2019-12-06 [E] [expires: 2022-12-09]
      F6F7 84C5 7788 2A17 097B  922B F92A 0D6C 07F6 8ED5
sub   rsa4096 2019-12-06 [A] [expires: 2022-12-09]
      4776 9C1C FD82 45C5 E2B6  614B 2A0B 2136 A0CB ECFD
sub   rsa4096 2019-12-06 [S] [expires: 2022-12-09]
      CBC0 116D 9F0C 3F14 CB68  013E E63B 4E13 BAA6 92CC

download key

-----BEGIN PGP PUBLIC KEY BLOCK-----

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=PBtR
-----END PGP PUBLIC KEY BLOCK-----