# SigningProtocol

The signing protocol of the Origin Access Control.

- Source: [`aws-cloudfront/lib/origin-access-control.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-cloudfront/lib/origin-access-control.ts#L147)
- Type last changed: v2.274.0 · 20 Oct 2026

## Members

| Member | Description |
| --- | --- |
| `SIGV4` | The AWS Signature Version 4 signing protocol. |
| `SIGV4A` | The AWS Signature Version 4A signing protocol. |

## Referenced by

- [`Signing`](/v2/docs/aws-cdk-lib.aws_cloudfront.Signing).protocol