CertificateTransparency on iOS 9 to iOS 11

Apple defines kSecTrustCertificateTransparency is available from starting iOS 9.


SecTrustCopyResult value return kSecTrustCertificateTransparency value only later iOS 12.1.

For iOS 9 , 10 and 11 kSecTrustCertificateTransparency is missing even for secure server which has Certificate Transparency Log.


Tried by Enabling NSRequireCertificateTransparency Key on Plist as well.

Very Hard to find out related resource and implementation.

Replies

Certificate transparency is generally transparent (hey hey) to developers. See this post for more background on this.

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Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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