I am leasing a self signed certificate using "NSMutableURLRequest" and when the certificate is anchored using a custom certificate with "SecTrustSetAnchorCertificates" iOS 11 fails with the following error message:
refreshPreferences: HangTracerEnabled: 1 refreshPreferences: HangTracerDuration: 500 refreshPreferences: ActivationLoggingEnabled: 0 ActivationLoggingTaskedOffByDA:0 ATS failed system trust System Trust failed for [1:0x1c417dc40] TIC SSL Trust Error [1:0x1c417dc40]: 3:0 NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802) Task <721D712D-FDBD-4F52-8C9F-EEEA28104E73>.<1> HTTP load failed (error code: -1200 [3:-9802]) Task <721D712D-FDBD-4F52-8C9F-EEEA28104E73>.<1> finished with error - code: -1200 What used to work for iOS 10 no longer works in IO 11.
I am aware that iOS 11 no longer supports the following:
- RC4 3DES-CBC AES-CBC
- MD5 SHA-1
- <2048-bit RSA Pub Keys - All TLS connections to servers
- http://
- SSLv3
- TLS 1.0
- TLS 1.1
And the certificate does not use these except for one fingerprint which is SHA-1, but a SHA-256 fingerprint is also listed.
And by adding the following we can bypass the ATS (App Transport Security) error:
<key>NSAppTransportSecurity</key> <dict> <key>NSExceptionDomains</key> <dict> <key>mydomain.com</key> <dict> <!--Include to allow subdomains--> <key>NSIncludesSubdomains</key> <true/> <key>NSExceptionRequiresForwardSecrecy</key> <false/> </dict> </dict> </dict> By installing the root / anchor certificate onto the phone itself also works without the need to whitelist the mydomain.com.
Does this mean that ATS no longer supports self-signed certificates?
This used to work in iOS 10:
SecTrustSetAnchorCertificates(serverTrust, (__bridge CFArrayRef)certs); Using nscurl on a Mac shows many failures and after installing the root certificate into the "System" Keystore nscurl succeeds. This was done on macOS 10.12.6.
nscurl --verbose --ats-diagnostics https:// How can I make this work with a custom certificate, but without the need to install certificates or whitelist the domain?