Authentication in Web, API-based & Distributed Environments

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AUTHENTICATION IN WEB, API-BASED & DISTRIBUTED ENVIRONMENTS NIKO KÖBLER (@DASNIKO)

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ABOUT ME ▸ Freelance Consultant/Architect/Developer/Trainer @ www.n-k.de ▸ Doing stuff with & without computers, writing Software, > 20 yrs ▸ Co-Lead of JUG DA (https://www.jug-da.de / @JUG_DA) ▸ Speaker at international Tech Conferences ▸ Author of „Serverless Computing in AWS Cloud“ serverlessbuch.de ▸ Twitter: @dasniko SSO & AUTHENTICATION IN API-BASED ENVIRONMENTS

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AUTHENTICATION AUTHORIZATION

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OAUTH2 AUTHORIZATION, NOT AUTHENTICATION! The OAuth 2.0 authorization framework enables a 3rd-party application to obtain limited access to an HTTP service. IETF, RFC 6749, 2012

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OAUTH2 GRANT TYPES GRANT TYPE APPS Authorization Code Web, Apps Implicit JavaScript, etc. Resource Owner Password Credentials Apps Client Credentials Web Refresh Web, Apps

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OAUTH2 TERMS Resource Owner Client Authorization Server Resource Server Redirect URI Response Type Scope Consent Client ID Client Secret Authorization Code Access Token

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ACCESS TOKEN { "access_token": "6041a9d7-8c39-4945-b7c6-eaf7bd5d0907", "token_type": "Bearer", "expires_in": 3600, "refresh_token": "e339b569-6d95-482d-9534-5c0147136ab0" }

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OPEN ID CONNECT AUTHENTICATION LAYER ON TOP OF OAUTH 2.0 ‣ verify the identity of an end-user ‣ obtain basic proﬁle information about the user ‣ RESTful HTTP API, using JSON as data format ‣ allows clients of all types (web-based, mobile, JavaScript) OPENID FOUNDATION, 2014

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OIDC { "access_token": "6041a9d7-8c39-4945-b7c6-eaf7bd5d0907", "token_type": "Bearer", "expires_in": 3600, "identity_token": "???", "refresh_token": "e339b569-6d95-482d-9534-5c0147136ab0" } OPENID CONNECT ADDS THE IDENTITY TOKEN

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JWT JSON WEB TOKEN RFC 7519 STANDARD, 2015

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JWT eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOi IxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiY WRtaW4iOnRydWV9.TJVA95OrM7E2cBab30RMHrH DcEfxjoYZgeFONFh7HgQ BASE64 ENCODED

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JSON WEB TOKEN

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JWT PAYLOAD { "sub": "1234567890", "iss": "https://sso.myapi.com", "aud": "myApi", "exp": 1479814753, "name": "John Doe", "admin": true } RESERVED CLAIMS: sub, iss, aud, exp

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OPEN ID CONNECT STANDARD CLAIMS http://openid.net/specs/openid-connect-core-1_0.html

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ACCESS TOKEN { "access_token": "6041a9d7-8c39-4945-b7c6-eaf7bd5d0907", "token_type": "Bearer", "expires_in": 3600, "identity_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...", "refresh_token": "e339b569-6d95-482d-9534-5c0147136ab0" }

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THANK YOU. ANY QUESTIONS? Slides: https://speakerdeck.com/dasniko Niko Köbler | www.n-k.de | [email protected] | @dasniko SSO & AUTHENTICATION IN API-BASED ENVIRONMENTS