如何将证书导入 iOS 钥匙串？

Question

I tried the following code but I keep getting "The specified attribute does not exist" error. kSecValueRef was checked and is not nil

let attributes: [String: Any] = [kSecClass as String : kSecClassCertificate,
                                 kSecValueRef as String : certificateRef!,
                                 kSecAttrApplicationTag as String : tag]

let osStatus = SecItemAdd(attributes as CFDictionary, nil)

Answer 1

You can find the resource describing available attributes for the kSecClassCertificate type here . You should change kSecAttrApplicationTag to kSecAttrLabel , that should solve the issue for you. The application tag is not a valid parameter for a certificate.

ps There is a document describing each of these attributes per class on the Apple developer documentation page, or you could also look at the source code .