Crate otp2

HMAC-based one-time passcodes

Provides implementations for both IETF RFCs:

• 4226: simple incrementing counter (HOTP)
• 6238: time-based counter (TOTP)

Custom HMAC-based one-time passcodes can be provided by types implementing the ToBytes trait.

Structs

Otp

One-time passcodes.

Enums

HotpError

Traits

ToBytes

Trait used to provide bytes as input to the HMAC algorithm.

Type Aliases

Hotp

HMAC-based one-time passcode

OtpResult

Totp

Time-based one-time passcode.