<!--
{
  "availability" : [
    "macCatalyst: 13.0.0 -",
    "macOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Security",
  "identifier" : "/documentation/Security/SecItemAttr/signatureItemAttr",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "Security"
    ],
    "preciseIdentifier" : "c:@E@SecItemAttr@kSecSignatureItemAttr"
  },
  "title" : "SecItemAttr.signatureItemAttr"
}
-->

# SecItemAttr.signatureItemAttr

Identifies the server signature attribute.

```
case signatureItemAttr
```

## Discussion

You use this tag to set or get a value of type [`SecAFPServerSignature`](/documentation/Security/SecAFPServerSignature) that represents the server signature block. This is unique to AppleShare password attributes.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)