Cryptographic log-on (CLO) is a process that uses Common Access Cards (CAC) and embedded Public Key Infrastructure (PKI) certificates to authenticate a user's identification to a workstation and network. It replaces the username and passwords for identifying and authenticating users. To log-on cryptographically to a CLO-enabled workstation, users simply insert their CAC into their workstation’s CAC reader and provide their Personal Identification Number (PIN).

The Navy/Marine Corps Intranet, among many other secure networks, uses CLO.

References

Mauck, James (January–March 2006). "Cryptographic Logon". CHIPS The Department of the Navy Information Technology Magazine. United States Department of the Navy. Archived from the original on 2007-01-15. Retrieved 2006-06-01.

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