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OAuth 1.0
conceptAuthentication Protocol
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Overview
Developed byBlaine Cook
Open source✓ Open Source
Use casesecure API authorization
Technical
Protocols
HTTPHTTPS
Knowledge graph stats
Claims15
Avg confidence91%
Avg freshness100%
Last updatedUpdated yesterday
WikidataQ1365854
Trust distribution
100% unverified
Governance
Not assessed
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OAuth 1.0

concept

Open standard for access delegation, predecessor to OAuth 2.0

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primary use case

ValueTrustConfidenceFreshnessSources
secure API authorization○UnverifiedHighFresh1
third-party application authentication○UnverifiedHighFresh1

open source

ValueTrustConfidenceFreshnessSources
true○UnverifiedHighFresh1

superseded by

ValueTrustConfidenceFreshnessSources
OAuth 2.0○UnverifiedHighFresh1

supports protocol

ValueTrustConfidenceFreshnessSources
HTTP○UnverifiedHighFresh1
HTTPS○UnverifiedHighFresh1

documented in

ValueTrustConfidenceFreshnessSources
RFC 5849○UnverifiedHighFresh1

published year

ValueTrustConfidenceFreshnessSources
2007○UnverifiedHighFresh1

uses signature method

ValueTrustConfidenceFreshnessSources
HMAC-SHA1○UnverifiedHighFresh1
RSA-SHA1○UnverifiedHighFresh1
PLAINTEXT○UnverifiedHighFresh1

adopted by

ValueTrustConfidenceFreshnessSources
Twitter○UnverifiedHighFresh1

developed by

ValueTrustConfidenceFreshnessSources
Blaine Cook○UnverifiedModerateFresh1
Chris Messina○UnverifiedModerateFresh1
Larry Halff○UnverifiedModerateFresh1

Related entities

Claim count: 15Last updated: 4/9/2026Edit history