Chapter 16 SSL VPN : Basic configuration : User accounts and groups : Authentication of remote users : NSA Suite B cryptography support
  
NSA Suite B cryptography support
FortiOS supports the use of ECDSA Local Certificates for SSL VPN Suite B. The National Security Agency (NSA) developed Suite B algorithms in 2005 to serve as a cryptographic base for both classified and unclassified information at an interoperable level.
FortiOS allows you to import, generate, and use ECDSA certificates defined by the Suite B cryptography set. To generate ECDSA certificates, use the following command in the CLI:
exec vpn certificate local generate ec
See Also
 
FortiOS supports LDAP password renewal notification and updates through SSL VPN. Configuration is enabled using the CLI commands:
config user ldap
edit <username>
set password-expiry-warning enable
set password-renewal enable
end
For more information, see the Authentication chapter of The Handbook.
Authentication of remote users
Allow one-time login per user
Setting the client authentication timeout