---
title: "SecRequirementCopyData(_:_:_:)"
framework: security
role: symbol
role_heading: Function
path: "security/secrequirementcopydata(_:_:_:)"
---

# SecRequirementCopyData(_:_:_:)

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

## Declaration

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

## Parameters

- `requirement`: A valid code requirement object.
- `flags`: Optional flags; see doc://com.apple.security/documentation/Security/SecCSFlags for possible values. Pass doc://com.apple.security/documentation/Security/SecCSFlags/kSecCSDefaultFlags for standard behavior.
- `data`: On return, the code requirement in the form of a binary blob.

## Return Value

Return Value A result code. See Code Signing Services Result Codes.

## Discussion

Discussion You can extract the binary blob from the 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(_:_:_:) function to convert it back to a code requirement object.