Previous key Yuki Kusanagi <yuki.kusanagi@tuta.io> (0x2461D78B) is revoked due to ROCA: Vulnerable RSA generation (CVE-2017-15361).

Now a new key is generated instead:

Yuki Kusanagi <yuki.kusanagi@tuta.io> (0x99DB83A8F033C0E0)

Download

it’s a ECC key with Ed25519 algorithm, you may need GPG v2.2+ to import and use it.