HTTP registry: tls-unique

TLS unique key-based

Authentication registry values define how a client proves identity or possession of credentials to an origin or proxy. tls-unique is registered in HTTP Mutual Authentication Host Validation Methods. Defining reference: RFC8120, Section 7.

httpregistryhttp-authentication-control-parametersmutual-authentication-host-validation-methods

Identifier (http)

tls-unique

TLS unique key-based

Use TLS, validate issuer/audience or challenge parameters, scope credentials to the correct hop, and design expiry, rotation, and replay handling explicitly.

This registry value is currently marked active by IANA. Follow the defining specification before sending, accepting, or proxying it.

IANA registry: http-authentication-control-parameters/mutual-authentication-host-validation-methods

Registry reference: RFC8120, Section 7

Sources

HTTP Mutual Authentication Host Validation Methods
RFC8120, Section 7