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# SecCertificateCopySubjectSummary(_:)

Returns a human-readable summary of a certificate.

```
func SecCertificateCopySubjectSummary(_ certificate: SecCertificate) -> CFString?
```

## Parameters

`certificate`

The certificate object for which you wish to return a summary string.

## Return Value

A string that contains a human-readable summary of the contents of the certificate. In Objective-C, call the <doc://com.apple.documentation/documentation/CoreFoundation/CFRelease> function to release this object when you are finished with it. Returns `NULL` if the data passed in the `certificate` parameter is not a valid certificate object.

## Discussion

Because all the data in the string comes from the certificate, the string is in whatever language is used in the certificate.

## See Also

[`SecCertificateCreateWithData(_:_:)`](/documentation/Security/SecCertificateCreateWithData(_:_:))

Creates a certificate object from a DER representation of a certificate.


---

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