6.3.1.21. TAN Token

The token type tan is related to the Paper Token (PPR).

In contrast to the paper token, a user can use the OTP values of a tan token in any arbitrary order.

A tan token can either be initialized with random OTP values. In this case the HOTP mechanism is used. Or it can be initialized or imported with a dedicated list of TANs.

After enrollment, you are prompted to print the generated TAN list.

../../_images/enroll_tan1.png
../../_images/enroll_tan2.png

6.3.1.21.1. Import of TAN token

The import schema for TAN tokens via the OATH CSV file looks like this:

<serial>, <seed>, tan, <white space separated list of tans>

The TANs are located in the 4th column. TANs are separated by blanks or whitespaces. The <seed> is not used with a TAN token. You can leave this blank or set to any (not used) value.

All TANs of one token must have the same length: the OTP length of the token is the length of the first TAN, and TANs of another length are imported but never accepted. The same applies to the tans parameter of /token/init.