Package io.github.pratiyush.totp

@NullMarked package io.github.pratiyush.totp

Production-Ready TOTP Library - Null Safety Declaration.

This package provides a secure, RFC 6238 compliant TOTP implementation with constant-time verification and replay attack prevention.

This package uses jSpecify annotations for null safety:

• @NullMarked - All types are non-null by default
• @Nullable - Explicitly marks nullable types

Since:

1.0.0

Version:

1.0.0

Author:

Pratiyush Kumar Singh

See Also:

• jSpecify
• RFC 6238

Related Packages

Package	Description
io.github.pratiyush.totp.internal	Internal implementation classes for the TOTP library.

Class	Description
Algorithm	Supported HMAC algorithms for TOTP generation.
InMemoryReplayGuard	Thread-safe in-memory implementation of ReplayGuard.
QRCodeGenerator	Generates QR codes for TOTP secrets compatible with authenticator apps.
ReplayGuard	Interface for preventing TOTP code replay attacks.
SecretGenerator	Secure generator for TOTP secrets.
TOTP	Main entry point for TOTP operations.
TOTP.Builder	Builder for creating TOTP instances.
TOTP.VerificationResult	Result of a TOTP verification with additional details.
TOTPConfig	Immutable configuration for TOTP generation and verification.
TOTPConfig.Builder	Builder for creating TOTPConfig instances.
TOTPException	Exception thrown for TOTP-related errors.
TOTPException.ErrorCode	Error codes for programmatic error handling.