---
schema-version: v1.2.8
id: OASISSAML2.0-text-challenge-CS01
title:
- content: SAML V2.0 Text-Based Challenge/ Response Token AuthenticationContext Class
  language:
  - en
  script:
  - Latn
  format: text/plain
  type: main
link:
- content: http://docs.oasis-open.org/security/saml/SpecDrafts-Post2.0/sstc-saml-text-based-challenge-response-authn-context-class-cs-01.html
  type: src
- content: http://docs.oasis-open.org/security/saml/SpecDrafts-Post2.0/sstc-saml-text-based-challenge-response-authn-context-class-cs-01.pdf
  type: pdf
- content: http://docs.oasis-open.org/security/saml/SpecDrafts-Post2.0/sstc-saml-text-based-challenge-response-authn-context-class-cs-01.odt
  type: odt
type: standard
docid:
- id: OASIS SAML2.0-text-challenge-CS01
  type: OASIS
  primary: true
docnumber: SAML2.0-text-challenge-CS01
date:
- type: issued
  value: '2007-05-23'
contributor:
- organization:
    name:
    - content: OASIS
    contact:
    - uri: https://www.oasis-open.org/
  role:
  - description:
    - content: Standards Development Organization
    type: authorizer
  - type: publisher
- organization:
    name:
    - content: Security Services (SAML) TC
    contact:
    - uri: https://www.oasis-open.org/committees/security/
  role:
  - description:
    - content: Committee
    type: authorizer
language:
- en
script:
- Latn
abstract:
- content: |-
    Covers a subset of challenge/response schemes including those that are based on cryptographic functions and time-based tokens. The notion of text-based challenge/response tokens are not covered by any of the current authentication context definitions.
    This document proposes an authentication context class to cover the general case of text-based challenge/response tokens to facilitate signaling their use in SAML. Such schemes include, for example, scratch tokens, numbered list tokens, grid tokens, etc. associated with a challenge/response authentication function. This document also proposes an extension that enables text-based challenge/response token parameters to be specified in relevant authentication contexts. This extension would be included in the  of such contexts.
  language:
  - en
  script:
  - Latn
  format: text/plain
doctype:
  type: specification
editorialgroup:
- name: Security Services (SAML) TC
ext:
  schema-version: v1.0.1
technology_area:
- Security