This document defines extensions to the Kerberos protocol to allow a
Kerberos client to securely communicate with a Kerberos application
service without revealing its identity, or without revealing more
than its Kerberos realm. It also defines extensions that allow a
Kerberos client to obtain anonymous credentials without revealing its
identity to the Kerberos Key Distribution Center (KDC). This
document updates RFCs 4120, 4121, and 4556. This document obsoletes
RFC 6112 and reclassifies that document as Historic. RFC 6112
contained errors, and the protocol described in that specification is
not interoperable with any known implementation. This specification
describes a protocol that interoperates with multiple
This document is a product of the Common Authentication Technology Next Generation Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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