hmac_operations library

HmacOperations - Production-ready HMAC signature generation for API authentication Dart/Flutter version with full type safety

Generates timestamp, nonce, and HMAC-SHA256 signatures for secure API requests. Supports canonical string signing (default) and full JSON signing. Cross-platform compatible with Node.js, PHP, Python, Java, etc.

Compatible with hmac-auth-builder npm package

Classes

HmacConfig

Configuration options for signature generation

HmacOperations

HmacOperations class for generating and verifying HMAC signatures

SignatureResult

Result object from signature generation

VerificationConfig

Configuration for signature verification

VerificationResult

Result from signature verification