OAuth 2.0 MAC Token Profile

The OAuth 2.0 core specification doesn’t mandate any specific token type. It’s one of the extension points introduced in OAuth 2.0. Almost all public implementations use the OAuth 2.0 Bearer Token Profile. This came up with the OAuth 2.0 core specification, but as an independent profile, documented under RFC 6750. Eran Hammer, who was the lead editor of the OAuth 2.0 specification by that time, introduced the MAC Token Profile for OAuth 2.0. (Hammer also led the OAuth 1.0 specification.) Since its introduction to the OAuth 2.0 IETF working group in November 2011, the MAC Token Profile has made a slow progress. ...

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