Trusted Network Connect

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Trusted Network Connect (TNC) is an open architecture for Network Access Control, promulgated by the Trusted Network Connect Work Group (TNC-WG) of the Trusted Computing Group (TCG).[1][2][3]


The TNC architecture was first introduced at the RSA Conference in 2005.[4] TNC was originally a network access control standard with a goal of multi-vendor endpoint policy enforcement.[5]

In 2009 TCG announced expanded specifications which extended the specifications to systems outside of the enterprise network.[6] Additional uses for TNC which have been reported include Industrial Control System (ICS), SCADA security,[7][8] and physical security.[9]


Specifications introduced by the TNC Work Group:[10]

  • TNC Architecture for Interoperability
  • IF-IMC - Integrity Measurement Collector Interface
  • IF-IMV - Integrity Measurement Verifier Interface[11]
  • IF-TNCCS - Trusted Network Connect Client-Server Interface[12]
  • IF-M - Vendor-Specific IMC/IMV Messages Interface
  • IF-T - Network Authorization Transport Interface[13]
  • IF-PEP - Policy Enforcement Point Interface[14]
  • IF-MAP - Metadata Access Point Interface
  • CESP - Clientless Endpoint Support Profile
  • Federated TNC[6]

TNC Vendor Adoption[edit]

A partial list of vendors who have adopted TNC Standards:[15]

Also, networking by

TNC Customer Adoption[edit]

The U.S. Army has planned to use this technology to enhance the security of its computer networks.[16]

The South Carolina Department of Probation, Parole, and Pardon Services has tested a TNC-SCAP integration combination in a pilot program.[17]

See also[edit]


  1. ^ "Archived copy". Archived from the original on 2011-07-10. Retrieved 2010-10-14. 
  2. ^ "Wireless Infrastructure Advice, Discussion, Community". Network Computing. Retrieved 2017-05-03. 
  3. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-07-13. Retrieved 2010-10-20. 
  4. ^ [1]
  5. ^ Vijayan, Jaikumar (2005-05-09). "Vendor Group Adds Net Access Specs". Computerworld. Retrieved 2017-05-03. 
  6. ^ a b "Trusted Computing Group Widens Security Specs Beyond Enterprise Networks". Retrieved 2017-05-03. 
  7. ^ "Not your Father's Control System | Tofino Industrial Security Solution". Retrieved 2017-05-03. 
  8. ^ "Archived copy". Archived from the original on 2011-07-28. Retrieved 2010-09-13. 
  9. ^ "Archived copy". Archived from the original on 2009-12-30. Retrieved 2010-10-14. 
  10. ^ "Archived copy". Archived from the original on 2010-01-09. Retrieved 2010-09-15. 
  11. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-01-03. Retrieved 2010-10-14. 
  12. ^ "TCG Trusted Network Connect : TNC IF-TNCCS: Protocol Bindings for SoH" (PDF). Retrieved 2017-05-03. 
  13. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-09-28. Retrieved 2010-10-14. 
  14. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-09-30. Retrieved 2010-10-14. 
  15. ^ [2] Archived 2011-07-16 at the Wayback Machine.
  16. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2006-10-03. Retrieved 2006-08-05. 
  17. ^ Jackson, William (2010-09-28). "Speed of cybersecurity rises with combination of Trusted Network Connect and Security Content Automation Protocols". Retrieved 2017-05-03. 


External links[edit]