Question A USB security key that supports TOTP authentication with seeds longer than 100 characters ?

goahead97

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Feb 28, 2021
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Hello

I bought a Thetis USB security key that supports TOTP authentication but it does not support seeds with a length longer than 100 characters.

Does anyone know USB security key models that support TOTP seeds longer than 100 characters?

Thanks
 
Hello

I bought a Thetis USB security key that supports TOTP authentication but it does not support seeds with a length longer than 100 characters.

Does anyone know USB security key models that support TOTP seeds longer than 100 characters?

Thanks
A bit of Googling indicates that Yubikeys support a higher number of characters:

The YubiKey's OATH application can store up to 64 OATH-TOTP credentials (authenticator codes), but the maximum length of a TOTP seed (or secret) itself is 128 bytes (205 characters).
 
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