# 🔐 Authentication & Security

##

To ensure secure communication between your application and the Redision Payment Gateway, each API request must be authenticated using the following credentials:

### Required Headers

| Header Name | Description                                                          |
| ----------- | -------------------------------------------------------------------- |
| `appkey`    | Provided by Redision for each merchant. Identifies your application. |
| `appid`     | A unique ID assigned to each merchant application.                   |
| `bodysign`  | A cryptographic signature to validate the request payload.           |

### Body Signature (`bodysign`)

The `bodysign` is a HMAC SHA-256 signature generated from the raw request body using your app secret:


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