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Visitor Fields Calculator

This page contains the visitor fields calculator, where you can calculate the checksum (hash) for the fields you specify using one of three algorithms:

  • SHA256

  • HMAC-SHA256

  • MD5

Warning!

We strongly don't recommend using the MD5 algorithm. The HMAC-SHA256 algorithm is preferred.

N.B.

You can learn more about calculating the checksum, as well as identifying authorized clients here.





Instructions for using the calculator:

  1. To select an encryption algorithm, open the Select Algorithm drop-down menu and click on the algorithm you want. Your choice will be displayed instead of Select Algorithm

  2. In the Private Key field, specify (or copy into the field) the private key you are using

  3. In the visitor_fields field, specify the visitor fields. Note that visitor fields can be entered as a string containing the visitor field values with no spaces between them (including the contents of the expires field, if used).

    Example string with visitor field values:

    Johnmail@rox.chat12345+104322434671481195621

  4. After selecting the hashing algorithm and filling in all fields, click Calculate hash. The result of hash calculation will be displayed in the field below. To clear the fields, click the Reset button. To save the result to the clipboard, click the Save to clipboard button