Step 1: Key Components

Before starting the integration, let’s review the key components of PureFi SDK-Solidity:

• PureFiVerifier:

  • The core contract for validating payloads.
  • Verifies signatures, data freshness, session uniqueness, and access rights.
  • Accessible via the IPureFiVerifier interface.

• PureFiIssuerRegistry:

  • Manages the list of authorized issuers who sign payloads.

• PureFiDataLibrary:

  • A library for parsing payload data (e.g., extracting sender addresses).

• CustomRevert:

  • A library for gas-efficient error handling.

Your smart contract will primarily interact with PureFiVerifier, while other components are used indirectly through it.