SDTID file extension - RSA soft-token file
What is sdtid file? How to open sdtid files?
File type specification:
File extension sdtid seems to be primarily used for so called tokens in RSA SecurID program. These are used much like encrypted certificates.
SecurID, now known as RSA SecurID, is a mechanism developed by Security Dynamics (later RSA Security and now RSA, The Security Division of EMC) for performing two-factor authentication for a user to a network resource.
The authentication mechanism consists of a "token" — either hardware (e.g. a USB dongle) or software (a soft token) — which is assigned to a computer user and which generates an authentication code at fixed intervals (usually 60 seconds) using a built-in clock and the card's factory-encoded random key (known as the "seed".
The seed is different for each token, and is loaded into the corresponding RSA SecurID server (RSA Authentication Manager, formerly ACE/Server) as the tokens are purchased.