---
title: signatureData
framework: passkit
role: symbol
role_heading: Instance Property
path: passkit/jpkipasscontents/signature/signaturedata
---

# signatureData

The result of signing the data provided by the caller using the requested digital identity.

## Declaration

```swift
let signatureData: Data
```

## Discussion

Discussion The pass determines the signature data format.

## See Also

### Defining the certificate and signed data

- [certificate](passkit/jpkipasscontents/signature/certificate.md)