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TokenBinding Specs@idcon mini Vol4
ritou
November 29, 2018
Technology
0
270
TokenBinding Specs@idcon mini Vol4
ritou
November 29, 2018
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Transcript
None
2018/11/29 idcon mini Vol.4 2
• rfc8471 • rfc8472 • rfc8473 2018/11/29 idcon mini Vol.4
3
• • • • • 2018/11/29 idcon mini Vol.4 4
(重要)TLSのバージョンについて ➢ https://tools.ietf.org/html/draft-ietf-tokbind- tls13-02 2018/11/29 idcon mini Vol.4 5
rfc8471 2018/11/29 idcon mini Vol.4 6
➢ version 1.0 of the Token Binding protocol ➢ the
format of the Token Binding protocol message the process of establishing a Token Binding the format of the Token Binding ID the process of validating a bound token 2018/11/29 idcon mini Vol.4 7
• プロトコル概要 • プロトコル内で扱われるメッ セージ • • 2018/11/29 idcon mini
Vol.4 8
• Bearer Token Sender Constrained Token • • • RFC8472
2018/11/29 idcon mini Vol.4 9
• • • RFC8473 • フェデレーションのユースケースについても考慮 2018/11/29 idcon mini Vol.4
10
• TokenBindingType • TokenBindingID • Signature • 2018/11/29 idcon mini
Vol.4 11
• • • referred_token_binding • Clientが別のServerに送るた めのTokenを要求 2018/11/29 idcon mini
Vol.4 12
• • • 2018/11/29 idcon mini Vol.4 13
• • • • EKM(Exported Key Material) from TLS Session
2018/11/29 idcon mini Vol.4 14
• • • • • 2018/11/29 idcon mini Vol.4 15
rfc8472 2018/11/29 idcon mini Vol.4 16
➢ Transport Layer Security (TLS) extension for the negotiation ➢
without introducing additional network round trips 2018/11/29 idcon mini Vol.4 17
• • 2018/11/29 idcon mini Vol.4 18
19 https://www.ipa.go.jp/security/ipg/documents/ipa-cryptrec-gl-3001-2.0.pdf
• 2018/11/29 idcon mini Vol.4 20
• • 2018/11/29 idcon mini Vol.4 21
• • • • 2018/11/29 idcon mini Vol.4 22
rfc8473 2018/11/29 idcon mini Vol.4 23
➢ collection of mechanisms that allow HTTP servers to cryptographically
bind security tokens ➢ how TokenBindingMessages are embedded in HTTP 2018/11/29 idcon mini Vol.4 24
• • • Federation ユースケース • 2018/11/29 idcon mini Vol.4
25
• • Sec-Token-Binding • 2018/11/29 idcon mini Vol.4 26
• • • • eTLD + 1 : example.com 2018/11/29
idcon mini Vol.4 27
• • • • 2018/11/29 idcon mini Vol.4 28
None
• • • Server1が発行したSecurityTokenをServer2が検証 するためには? 2018/11/29 idcon mini Vol.4 30
• • • • Token Consumer • Token Provider 2018/11/29
idcon mini Vol.4 31
32
• • • Include-Referred-Token-Binding-ID: true 2018/11/29 idcon mini Vol.4 33
TPにアクセスする際に、TC向けのTBIDに紐づくKey-Pair で作成した値を含む [{EKM2}Ks1,TBID1,referred_token_binding] 2018/11/29 idcon mini Vol.4 34
35
36 https://lepidum.co.jp/blog/2016-12-20/tokbind/