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# Certificate Property Keys

Recognize the dictionary keys that taken together define a certificate property.

## Discussion

These are the keys that appear in the property dictionaries that describe a certificate. Each property dictionary includes a key for the property type, a label for the property, a localized label, and the property value itself. Many property dictionaries are in turn collected into a larger dictionary that is returned by a call to the [`SecCertificateCopyValues(_:_:_:)`](/documentation/Security/SecCertificateCopyValues(_:_:_:)) function.

## Topics

### Constants

[`let kSecPropertyKeyType: CFString`](/documentation/Security/kSecPropertyKeyType)

A key whose value indicates the type of certificate property.

[`let kSecPropertyKeyLabel: CFString`](/documentation/Security/kSecPropertyKeyLabel)

A key whose value is the label for a certificate property.

[`let kSecPropertyKeyLocalizedLabel: CFString`](/documentation/Security/kSecPropertyKeyLocalizedLabel)

A key whose value is the localized label for a certificate property.

[`let kSecPropertyKeyValue: CFString`](/documentation/Security/kSecPropertyKeyValue)

A key whose value is the value for a certificate property.


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