SSL error not occuring in IOS 10.3

Question

In our app ATS is enabled and we are using a server that is not using TLS 1.2.

In ios 10.1 and 10.2 when trying to connect this server,connection fails with the below error.

This is not observed in iOS 10.3. Connection is establishing normally

-(void) connection:(NSURLConnection *)aConnection didFailWithError:(NSError *)aError

Error

Error: Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={_kCFStreamErrorCodeKey=-9801, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, NSUnderlyingError=0x170649ed0
{Error Domain=kCFErrorDomainCFNetwork Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={NSErrorFailingURLStringKey=https://************, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?,
_kCFNetworkCFStreamSSLErrorOriginalValue=-9801, _kCFStreamPropertySSLClientCertificateState=0, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., _kCFStreamErrorDomainKey=3,
NSErrorFailingURLKey=https://****************, _kCFStreamErrorCodeKey=-9801}}, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., NSErrorFailingURLKey=https://*************, NSErrorFailingURLStringKey=https://**************, _kCFStreamErrorDomainKey=3}

My question is why connection is establishing in 10.3 even though server is not using TLS 1.2. Is there any changes to ATS, TLS version 1.2 mandatory , or NSAllowLocalNetworking in ios 10.3 update

Need more details. Is this a local network resource? Self-signed cert? What are your App Transport Security settings in your Info.plist? — wottle, Apr 04 '17 at 14:07

SSL error not occuring in IOS 10.3

0 Answers0