Sets the date and time against which the certificates in a trust management object are verified.
- iOS 2.0+
- macOS 10.3+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The trust management object whose verification date you want to set. A trust management object includes one or more certificates plus the policy or policies to be used in evaluating trust. Use the
Secfunction to create a trust management object.
Trust Create With Certificates(_: _: _:)
The date and time to use when verifying the certificate.
A result code. See Security Framework Result Codes.
By default, the
Sec function uses the current date and time when verifying a certificate. However, you can use
Sec to set another date and time to use when verifying a certificate. For example, you can determine whether the certificate was valid when the document was signed rather than whether it’s valid at the present time.
It is safe to call this function concurrently on two or more threads as long as it is not used to change the value of a trust management object that is simultaneously being used by another function. For example, you cannot call this function on one thread at the same time as you are calling the evaluation function for the same trust management object on another thread, but you can call this function and simultaneously evaluate a different trust management object on another thread. Similarly, calls to functions that return information about a trust management object (such as the
Sec function) may fail or return an unexpected result if this function is simultaneously changing the same trust management object on another thread.