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# SecRequirementCopyData(_:_:_:)

Extracts a binary form of a code requirement from a code requirement object.

```
func SecRequirementCopyData(_ requirement: SecRequirement, _ flags: SecCSFlags, _ data: UnsafeMutablePointer<CFData?>) -> OSStatus
```

## Parameters

`requirement`

A valid code requirement object.

`flags`

Optional flags; see [`SecCSFlags`](/documentation/Security/SecCSFlags) for possible values. Pass [`kSecCSDefaultFlags`](/documentation/Security/SecCSFlags/kSecCSDefaultFlags) for standard behavior.

`data`

On return, the code requirement in the form of a binary blob.

## Return Value

A result code. See [Code Signing Services Result Codes](/documentation/Security/code-signing-services-result-codes).

## Discussion

You can extract the binary blob from the <doc://com.apple.documentation/documentation/CoreFoundation/CFData> object and store it in any form you wish. Use of this function is the only publicly supported way to get such a data blob. You can use the [`SecRequirementCreateWithData(_:_:_:)`](/documentation/Security/SecRequirementCreateWithData(_:_:_:)) function to convert it back to a code requirement object.

---

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