The following keys are generally given to anyone who has a parsell.me address and can be used to securely send any type of data.
Note: these keys are in the ssh-keygen default format

SSH ECDSA - Secure, Recommended

ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHs2cDbEV99V/nq6tHfVkxIOgZ3GSL670QEUo3QPBunZmdxB0eyAVlKJoFXuyMmf9vCbxYreSsIPV04iqt1lrXPPADiOVprAprdGWBbOitdfUgpb/TBYG8sSG4aZ1P+LeKsqwPSHKd9crdSc8PxYj+V7GkQaNFSXT1X7R1nsadUYfbLDA==

SSH RSA - Not secure, not recommended

ssh-rsa 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