# SigningKeyInfoProperty

The signing key used by the permit.

Exactly one key type must be provided.

- Source: Generated code
- Type last changed: v2.268.0 · 2 Sep 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_supportauthz as supportauthz } from 'aws-cdk-lib';
const signingKeyInfoProperty: supportauthz.CfnSupportPermit.SigningKeyInfoProperty = {
  kmsKey: 'kmsKey',
};
```

## Properties

- `kmsKey`: string (required) — The ARN of the KMS key used to sign permit grants.