HMAC

Authorization: "epi-hmac {appKey}:{timestamp}:{nonce}:{signature}"

HMAC (Hash-based Message Authentication Code) is the best choice for users who prioritize security, as it ensures message integrity and authenticity by combining a secret key with a cryptographic hash function. This makes it particularly suitable for applications handling sensitive data in some sectors, such as finance. Users can trust that HMAC protects their communications from unauthorized access and tampering.

You can implement this method using your appKey and secret credentials. Refer to the recipe below for more details.