hmac_auth_builder 0.0.1

HMAC-based request signing for Dart and Flutter, designed for secure API authentication and webhook verification. The library produces signatures that are compatible with the Node.js package `hmac-aut [...]

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

---

1.0.0 - 2026-02-02

Added

• Initial release of HMAC signature generation and verification.
• Support for canonical string signing with customizable field order.
• Multiple hash algorithms: SHA-256, SHA-512, SHA-384, SHA-1, MD5.
• Multiple output encodings: hex, base64, base64url.
• Configurable timestamp formats: milliseconds, seconds, unix, ISO8601.
• Configurable nonce formats: UUID v4, UUID v1, random hex, random base64, custom generator.
• Timestamp tolerance configuration for replay attack prevention.
• Full cross-platform compatibility with Node.js hmac-auth-builder package.
• Comprehensive test suite with unit tests and cross-platform verification examples.
• Documentation with usage examples and integration patterns.

---

[Unreleased]

Planned

• Built-in middleware for Dart Shelf framework.
• Performance benchmarks and optimization for high-throughput scenarios.
• Support for batch signature verification.

---