Question

您好我正在尝试在没有kSecAttrAccountValue属性且仅使用kSecAttrServiceValue的情况下查询我的项目的keychain。这可能吗？状态为0然而，响应为零。我尝试添加一个帐户，效果很好！但是，我的目标是在没有它的情况下获得结果，或者将所有结果存储在同一服务中。请让我知道，谢谢！

参考： Save and Load from KeyChain | Swift

代码：

let keychainQuery: NSMutableDictionary = NSMutableDictionary(objects: [kSecClassGenericPasswordValue, service, kCFBooleanTrue, kSecMatchLimitOneValue], forKeys: [kSecClassValue, kSecAttrServiceValue, kSecReturnDataValue, kSecMatchLimitValue])

        var dataTypeRef :AnyObject?

        // Search for the keychain items
        let status: OSStatus = SecItemCopyMatching(keychainQuery, &dataTypeRef)
        var contentsOfKeychain: String?

        if status == errSecSuccess {
            if let retrievedData = dataTypeRef as? Data {
                contentsOfKeychain = String(data: retrievedData, encoding: String.Encoding.utf8)
            }
        } else {
            print("Nothing was retrieved from the keychain. Status code \(status)")
        }

        return contentsOfKeychain

Answer 1

KeychainAccess使用钥匙串更加简单：

// Create keychain object
let keychain = Keychain(service: "com.company.AppName")

// Store value in keychain
keychain["password"] = "test"

// Retrieve value from keychain
let password = keychain["password"]

使用帐户属性查询IOS Keychain？

1 个答案: