TOTP class

The RFC 6238 algorithm implementation.

@see https://tools.ietf.org/html/rfc6238

Example 1:

final hoto = HOTP(secret);
final totp = TOTP(
   hoto,
   digits: 6,
   period: 30,
);
final value = totp.make();

Example 2:

final totp = TOTP.secret(
  secret,
  digits: 6,
  period: 30,
);
final value = totp.make();

Constructors

TOTP(HOTP hotp, {int digits = 6, int period = 30})

Create a new TOTP instance.

const

TOTP.secret(List<int> secret, {int digits = 6, int period = 30})

Create a new TOTP instance for a given secret.

factory

Properties

digits → int

digits - The number of digits in the code.

final

hashCode → int

The hash code for this object.

no setter, inherited

hotp → HOTP

The REC 4226 algorithm implementation.

final

period → int

period - The number of seconds in the time period.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

check(String otp, [int breadth = 0]) → bool

Chack a OTP value.

make() → String

Make a OTP value.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited