Optional ReadonlyalgorithmHMAC algorithm to use (default: 'SHA-1').
ReadonlycounterThe counter value.
Optional ReadonlydigitsNumber of digits in the generated code (1-10, default: 6).
ReadonlyotpThe OTP code to verify.
ReadonlysecretThe shared secret, either as a base32-encoded string or raw bytes.
Optional ReadonlywindowNumber of counter values to check ahead of the given counter (default: 0).
Options for HOTP code verification.