[1] solid/solid-spec ( 版) <https://github.com/solid/solid-spec#webid-rsa>
WebID-RSA is somehow similar to WebID-TLS, in that a public RSA key is published in the WebID profile, and the user will sign a token with the corresponding private key that matches the public key in the profile.
[2] solid/solid-spec ( 版) <https://github.com/solid/solid-spec#webid-rsa>
HTTP/1.1 401 Unauthorized
WWW-Authenticate: WebID-RSA source="example.org", nonce="securestring"
[3] solid/solid-spec ( 版) <https://github.com/solid/solid-spec#webid-rsa>
Authorization: WebID-RSA source="example.org",
username="https://alice.example.org/card#me",
nonce="securestring",
sig="base64(sig(SHA1(SourceUsernameNonce)))"