[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[solid/solid-spec]]
([TIME[2015-11-19 18:26:56 +09:00]] 版)
<https://github.com/solid/solid-spec#webid-rsa>
]FIGCAPTION]

> 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.

]FIG]


[FIG(quote)[
[FIGCAPTION[
[2] [CITE@en[solid/solid-spec]]
([TIME[2015-11-19 18:27:10 +09:00]] 版)
<https://github.com/solid/solid-spec#webid-rsa>
]FIGCAPTION]

> HTTP/1.1 401 Unauthorized
> WWW-Authenticate: WebID-RSA source="example.org", nonce="securestring"

]FIG]


[FIG(quote)[
[FIGCAPTION[
[3] [CITE@en[solid/solid-spec]]
([TIME[2015-11-19 18:27:23 +09:00]] 版)
<https://github.com/solid/solid-spec#webid-rsa>
]FIGCAPTION]

> 
> Authorization: WebID-RSA source="example.org",
>                          username="https://alice.example.org/card#me", 
>                          nonce="securestring",
>                          sig="base64(sig(SHA1(SourceUsernameNonce)))"

]FIG]