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Signature Guide

Unified Signing Rules

All countries use the same signing rules. Please refer to the Signature Guide.

Quick Guide​

We use the HMAC-SHA256 signing algorithm.

Signing Steps​

  1. Sort parameters by ASCII order, excluding sign, sign_type, and empty values
  2. Concatenate as key=value&key=value format (do NOT URL-encode values)
  3. Sign with HMAC-SHA256 using your platform key

👉 For complete instructions and code examples, see the Signature Guide