This isn't really Github's fault (or Oracle, or whatever). I'm pretty sure that in the old days, asymmetric cryptography was called "Secret Key Cryptography" (

This isn't really Github's fault (or Oracle, or whatever). I'm pretty sure that in the old days, asymmetric cryptography was called "Secret Key Cryptography" (note the contrast with "Public Key Cryptography"). Anyway, the clue is in the word "secret", in "secret key" - you're supposed to keep it secret.