Adyen's Customer Area issues the webhook HMAC key as a HEX string; the bytes it encodes are the key, so it must be decoded before signing. Hashing the hex text itself would produce a signature that never matches.
Adyen's Customer Area issues the webhook HMAC key as a HEX string; the bytes it encodes are the key, so it must be decoded before signing. Hashing the hex text itself would produce a signature that never matches.