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NTLMSSP

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This is an old revision of this page, as edited by Miallen (talk | contribs) at 04:46, 2 August 2019 (Removed bit about NTLMSSP being removed which is of course nonsense or NTLM clients would not be able to authenticate with Windows servers. The reference to "NTLMSSP Service" on the MS page must be referencing something other than the NTLMSSP provider to SSPI.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

NTLMSSP (NT LAN Manager (NTLM) Security Support Provider) is a binary messaging protocol used by the Microsoft Security Support Provider Interface (SSPI) to facilitate NTLM challenge-response authentication and to negotiate integrity and confidentiality options. NTLMSSP is used wherever SSPI authentication is used including Server Message Block / CIFS extended security authentication, HTTP Negotiate authentication (e.g. IIS with IWA turned on) and MSRPC services.

The NTLMSSP and NTLM challenge-response protocol have been documented in Microsoft's Open Protocol Specification.[1]

References

  1. ^ MS-NLMP - NT LAN MANAGER (NTLM) Authentication Protocol Specification Archived 2008-04-11 at the Wayback Machine
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