Files with sdtid suffix can be mostly found as some sort of tokens used by RSA SecurID. It is some sort of encrypted certificate.

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SDTID file extension - RSA soft-token file

What is sdtid file? How to open sdtid files?

File type specification:

Encoded and encrypted file type icon Encoded and encrypted file type

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.

Help how to open SDTID files:

You should be able to import certificates to programs that support them.

How to convert file with extension SDTID:

Security certificates cannot be typically converted to anything else. They are usually generated for single purpose.

Related links:

RSA client download

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