TOTP dynamic verification code test
Calculate the one-time verification code and the current time step from your own base32 test key and specified time.
It is only processed in the browser, not uploading or saving. Leaving the page will be cleared; the calculation can also be cleared and the result can be discarded. Do not enter other people's credentials or private keys.
TOTP dynamic verification code test User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Use RFC demo key and time 59 seconds to check 8-bit verification code.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Invoke HMAC dynamic truncation according to RFC 6238, support SHA-1, SHA-256, SHA-512 and 6 or 8 bits.
scope of use
Only used for your own test key; not logged in online, not trying other people's accounts. HTTPS is required, the result will not be refreshed automatically, please do not share the real key.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Only used for your own test key; not logged in online, not trying other people's accounts. HTTPS is required, the result will not be refreshed automatically, please do not share the real key. Please compare the input unit, rounding method, applicable rules and data version first.