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                                                                Channel-Binding Types

Last Updated
        2026-07-13

Registration Procedure(s)

             Expert Review


Expert(s)

             Nicolas Williams


Reference
        [RFC 5056]

Available Formats
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                                                                                                     Person and email  Owner/Change
   Channel-binding    Channel-binding Channel   Published   Channel-binding                Intended address to contact  controller  Expert reviewer  Registration    Last
    unique prefix          type        type   specification    is secret     Description    usage      for further       name and   name and contact     Date      Updated       Note
                                                                                                       information        email       information
                                                                                                                         address
                                                                                                                                                                             see the
                                                                                                                                                                             published
                                                                                                                                                                             specification
                                      TLS                                   <See                    [Larry_Zhu];                                                             for advice on
tls-server-end-point  end-point       [RFC    [RFC 5929]    no              specification> COMMON   [Nicolas_Williams] [IESG]       [IETF_TLS_WG]     2008-06-26  2010-05-13 the
                                      5246]                                                                                                                                  applicability
                                                                                                                                                                             of this
                                                                                                                                                                             channel
                                                                                                                                                                             binding type.
                                                                                                                                                                             see the
                                                                                                                                                                             published
                                                                                                                                                                             specification
                                      TLS                                   <See                    [Larry_Zhu];                                                             for advice on
tls-unique            unique          [RFC    [RFC 5929]    no              specification> COMMON   [Nicolas_Williams] [IESG]       [IETF_TLS_WG]     2008-06-26  2010-05-13 the
                                      5246]                                                                                                                                  applicability
                                                                                                                                                                             of this
                                                                                                                                                                             channel
                                                                                                                                                                             binding type.
                                                                                                                                                                             see the
                                                                                                                                                                             published
                                                                                                                                                                             specification
                                      TLS                                   <See                    [Jeff_Altman];                                                           for advice on
tls-unique-for-telnet unique          [RFC    [RFC 5929]    no              specification> COMMON   [Nicolas_Williams] [IESG]       [IETF_TLS_WG]     2008-06-26  2010-05-13 the
                                      5246]                                                                                                                                  applicability
                                                                                                                                                                             of this
                                                                                                                                                                             channel
                                                                                                                                                                             binding type.
                                                                                                                                                                             See the
                                                                                                                                                                             published
                                                                            The EKM value                                                                                    specification
                                      TLS                                   obtained from                                           [IETF_TLS_WG];                           for advice on
tls-exporter          unique          [RFC    [RFC 9266]    no              the current    COMMON   [Sam_Whited]       [IESG]       [IETF_KITTEN_WG]  2022-05-31  2025-08-12 the
                                      9846]                                 TLS                                                                                              applicability
                                                                            connection.                                                                                      of this
                                                                                                                                                                             channel
                                                                                                                                                                             binding type.

                                                                 Contact Information

        ID               Name        Organization              Contact URI             Last Updated
[IESG]                              IESG
[IETF_KITTEN_WG]                    IETF KITTEN WG mailto:kitten&ietf.org
                                                   mailto:ietf&ietf.org
[IETF_TLS_WG]                       IETF TLS WG    mailto:tls&ietf.org
                                                   mailto:ietf&ietf.org
[Jeff_Altman]      Jeff Altman                     mailto:jaltman&secure-endpoints.com
[Larry_Zhu]        Larry Zhu                       mailto:larry.zhu&microsoft.com
[Nicolas_Williams] Nicolas Williams                mailto:Nicolas.Williams&oracle.com
[Sam_Whited]       Sam Whited                      mailto:sam&samwhited.com            2022-05-31

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