# CustomCodeSigningProperty

- Source: Generated code
- Type last changed: v2.276.0 · 10 Nov 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_iot as iot } from 'aws-cdk-lib';
const customCodeSigningProperty: iot.CfnOTAUpdate.CustomCodeSigningProperty = {
  certificateChain: {
    certificateName: 'certificateName',
    inlineDocument: 'inlineDocument',
  },
  hashAlgorithm: 'hashAlgorithm',
  signature: {
    inlineDocument: 'inlineDocument',
  },
  signatureAlgorithm: 'signatureAlgorithm',
};
```

## Properties

- `certificateChain`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnOTAUpdate.CodeSigningCertificateChainProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_iot.CfnOTAUpdate.CodeSigningCertificateChainProperty.html)

- `hashAlgorithm`: string — The hash algorithm used to code sign the file.

- `signature`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnOTAUpdate.CodeSigningSignatureProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_iot.CfnOTAUpdate.CodeSigningSignatureProperty.html)

- `signatureAlgorithm`: string — The signature algorithm used to code sign the file.