Overview #

Iss (issuer) is an Abbreviation or Parameter

OAuth 2.0 #

Iss (issuer) in the Access Token identifies the Digital Identity that issued the Access Token.

RFC 9207 further defines Iss and that in the Authorization Response to the client, including error responses, an Authorization Server supporting this specification MUST indicate its identity by including the iss parameter in the Authorization Response

OpenID Connect#

Iss (issuer) OPTIONAL Reserved Claim Name for JSON Web Token Claims identifies the principal that issued the JSON Web Token.

The processing of this claim is generally application specific.

The "Iss" value is a case-sensitive string containing a StringOrURI value.

More Information#

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