Package com.iizix.totp

package com.iizix.totp
  • Class
    Description
    CodeGenerationException
    Thrown when a code cannot be generated, e.g.
    CodeGenerator
    Generates the n-digit code for a shared secret and a counter (RFC 4226 HOTP; RFC 6238 TOTP uses the time bucket as the counter).
    DefaultCodeGenerator
    The RFC 4226 / RFC 6238 code generator: HMAC of the big-endian 8-byte counter with the Base32-decoded secret, dynamic truncation, modulo 10^digits, zero-padded.
    DefaultCodeVerifier
    Verifies a code against a shared secret for the current time period and the allowed discrepancy either side of it (RFC 6238 section 5.2).
    DefaultSecretGenerator
    Generates a random Base32 encoded shared secret from the IIZI secure random source.
    HashingAlgorithm
    The HMAC hashing algorithms of RFC 6238.
    QrData
    The data of an enrolment QR code: the otpauth://totp/ URI parameters.
    QrData.Builder
    The builder class.
    RecoveryCodeGenerator
    Generates the recovery codes of a user with a second factor: the codes that sign the user in when the authenticator app is lost.
    SystemTimeProvider
    The time provider reading the system clock, in epoch seconds.
    TimeProvider
    The time source of a code verifier.
    TimeProviderException
    Thrown by a TimeProvider that cannot provide the time.