Re: [OAUTH-WG] PKCE/SPOP
Nat Sakimura <sakimura@gmail.com> Wed, 04 February 2015 02:38 UTC
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Date: Wed, 04 Feb 2015 11:38:20 +0900
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From: Nat Sakimura <sakimura@gmail.com>
To: William Denniss <wdenniss@google.com>
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Cc: oauth <oauth@ietf.org>
Subject: Re: [OAUTH-WG] PKCE/SPOP
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Hmmm. A bug at ietf.org rendering engine? Perhaps we may repeat of RFC4648 again there to avoid this behaviour. 2015-02-04 10:50 GMT+09:00 William Denniss <wdenniss@google.com>: > Speaking of Base64url, where it's defined in "Notational Conventions", is > there a way to prevent the HTML markup automatically linkifying "Section > 3.2" ? It's not marked up in the XML, but in the HTML output it is – and > the auto-generated link is incorrect, as it points to Section 3.2 in SPOP, > rather than 3.2 in RFC4648. > > This may seem trivial, but the fact that we're using a less common variant > of Base64url makes me want to provide as much accurate context as possible > to help implementers. > > This is how it renders today (note the Section 3.2 link) > > Base64url Encoding Base64 encoding using the URL- and filename-safe > character set defined in Section 5 of RFC 4648 <http://tools.ietf.org/html/rfc4648#section-5> [RFC4648 <http://tools.ietf.org/html/rfc4648>], with all > trailing '=' characters omitted (as permitted by Section 3.2 <http://tools.ietf.org/html/draft-ietf-oauth-spop-08#section-3.2>) and > without the inclusion of any line breaks, whitespace, or other > additional characters. (See Appendix A <http://tools.ietf.org/html/draft-ietf-oauth-spop-08#appendix-A> for notes on implementing > base64url encoding without padding.) > > > > On Tue, Feb 3, 2015 at 6:51 AM, John Bradley <ve7jtb@ve7jtb.com> wrote: > >> OK I fixed that in bitbucket. >> >> If I don’t hear back from anyone else I will push that version to the doc >> tracker this afternoon. >> >> John B. >> >> >> On Feb 3, 2015, at 10:40 AM, Brian Campbell <bcampbell@pingidentity.com> >> wrote: >> >> I went thought appendix B and reproduced the same calculations. Which is >> nice. >> >> One little nit - to be consitent with the notation defined in §2, the appendix >> B should have >> >> BASE64URL(SHA256(ASCII("code_verifier"))) == code_challenge >> >> rather than >> >> Base64url(SHA256(ASCII("code_verifier" ))) == code_challenge >> >> >> >> >> On Sun, Feb 1, 2015 at 5:07 PM, John Bradley <ve7jtb@ve7jtb.com> wrote: >> >>> >>> https://bitbucket.org/Nat/oauth-spop/raw/cd8b86496fb59261103143c246658da06e99c225/draft-ietf-oauth-spop-00.txt >>> >>> I made some edits to the copy in bitbucket. >>> >>> I changed the reference for unreserved URI characters to RFC3986. The >>> Base64 spec we were pointing to is slightly different. >>> The change allows someone in the future to define a new >>> code_challenge_method that would allow a JWT to be valid. >>> We unintentionally precluded the use of the “.” in code_challenge and >>> code_verifier. >>> >>> I also added an appendix B to show the steps of S256 in a way someone >>> could use as a test vector. >>> >>> Appendix B is a first cut at it so give me feedback, and I can push it >>> to the document tracker later in the week. >>> >>> >>> John B. >>> >>> >>> _______________________________________________ >>> OAuth mailing list >>> OAuth@ietf.org >>> https://www.ietf.org/mailman/listinfo/oauth >>> >>> >> >> >> _______________________________________________ >> OAuth mailing list >> OAuth@ietf.org >> https://www.ietf.org/mailman/listinfo/oauth >> >> > > _______________________________________________ > OAuth mailing list > OAuth@ietf.org > https://www.ietf.org/mailman/listinfo/oauth > > -- Nat Sakimura (=nat) Chairman, OpenID Foundation http://nat.sakimura.org/ @_nat_en
- [OAUTH-WG] PKCE/SPOP John Bradley
- Re: [OAUTH-WG] PKCE/SPOP Brian Campbell
- Re: [OAUTH-WG] PKCE/SPOP John Bradley
- Re: [OAUTH-WG] PKCE/SPOP William Denniss
- Re: [OAUTH-WG] PKCE/SPOP Nat Sakimura
- Re: [OAUTH-WG] PKCE/SPOP John Bradley
- Re: [OAUTH-WG] PKCE/SPOP Brian Campbell
- Re: [OAUTH-WG] PKCE/SPOP John Bradley