--- /dev/null
+//
+// SOSTrustedDeviceAttributes.h
+// Security
+//
+
+#ifndef SOSTrustedDeviceAttributes_h
+#define SOSTrustedDeviceAttributes_h
+
+#import <Foundation/Foundation.h>
+#define MACHINEID @"machineID"
+#define SERIALNUMBER @"serialNumber"
+
+NS_ASSUME_NONNULL_BEGIN
+
+#if __OBJC2__
+
+@interface SOSTrustedDeviceAttributes : NSObject <NSSecureCoding>
+
+@property NSString *machineID;
+@property NSString *serialNumber;
+
+@end
+#endif /* __OBJC2__ */
+
+NS_ASSUME_NONNULL_END
+
+#endif /* SOSTrustedDeviceAttributes_h */