RFC6113 · A Generalized Framework for Kerberos Pre-Authentication
A Generalized Framework for Kerberos Pre-Authentication
Kerberos is a protocol for verifying the identity of principals (e.g., a workstation user or a network server) on an open network. The Kerberos protocol provides a facility called pre-authentication. Pre-authentication mechanisms can use this facility to extend the Kerberos protocol and prove the identity of a principal. This document describes a more formal model for this facility. The model describes what state in the Kerberos request a pre-authentication mechanism is likely to change. It also describes how multiple pre-authentication mechanisms used in the same request will interact. This document also provides common tools needed by multiple pre-authentication mechanisms. One of these tools is a secure channel between the client and the key distribution center with a reply key strengthening mechanism; this secure channel can be used to protect the authentication exchange and thus eliminate offline dictionary attacks. With these tools, it is relatively straightforward to chain multiple authentication mechanisms, utilize a different key management system, or support a new key agreement algorithm. [STANDARDS-TRACK]
IETF · RFCОфициальная английская аннотация
Kerberos is a protocol for verifying the identity of principals (e.g., a workstation user or a network server) on an open network. The Kerberos protocol provides a facility called pre-authentication. Pre-authentication mechanisms can use this facility to extend the Kerberos protocol and prove the identity of a principal. This document describes a more formal model for this facility. The model describes what state in the Kerberos request a pre-authentication mechanism is likely to change. It also describes how multiple pre-authentication mechanisms used in the same request will interact. This document also provides common tools needed by multiple pre-authentication mechanisms. One of these tools is a secure channel between the client and the key distribution center with a reply key strengthening mechanism; this secure channel can be used to protect the authentication exchange and thus eliminate offline dictionary attacks. With these tools, it is relatively straightforward to chain multiple authentication mechanisms, utilize a different key management system, or support a new key agreement algorithm. [STANDARDS-TRACK]
{
"id": "RFC6113",
"number": 6113,
"title_en": "A Generalized Framework for Kerberos Pre-Authentication",
"title_ru": "",
"summary_ru": "",
"purpose_ru": "",
"use_ru": "",
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"abstract_en": "Kerberos is a protocol for verifying the identity of principals (e.g., a workstation user or a network server) on an open network. The Kerberos protocol provides a facility called pre-authentication. Pre-authentication mechanisms can use this facility to extend the Kerberos protocol and prove the identity of a principal. This document describes a more formal model for this facility. The model describes what state in the Kerberos request a pre-authentication mechanism is likely to change. It also describes how multiple pre-authentication mechanisms used in the same request will interact. This document also provides common tools needed by multiple pre-authentication mechanisms. One of these tools is a secure channel between the client and the key distribution center with a reply key strengthening mechanism; this secure channel can be used to protect the authentication exchange and thus eliminate offline dictionary attacks. With these tools, it is relatively straightforward to chain multiple authentication mechanisms, utilize a different key management system, or support a new key agreement algorithm. [STANDARDS-TRACK]",
"authors": [
"S. Hartman",
"L. Zhu"
],
"organizations": [],
"publication_date": "2011-04-01",
"current_status": "PROPOSED STANDARD",
"current_status_ru": "Предлагаемый стандарт",
"publication_status": "PROPOSED STANDARD",
"publication_status_ru": "Предлагаемый стандарт",
"lifecycle": "active",
"lifecycle_ru": "Действующий",
"stream": "IETF",
"stream_ru": "IETF",
"area": "sec",
"area_ru": "Безопасность",
"working_group": "krb-wg",
"source_draft": "draft-ietf-krb-wg-preauth-framework-17",
"page_count": 48,
"doi": "10.17487/RFC6113",
"keywords": [],
"formats": [
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"relations": {
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"updates": [
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"txt": "https://www.rfc-editor.org/rfc/rfc6113.txt",
"datatracker": "https://datatracker.ietf.org/doc/rfc6113/"
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}