Data corruption using SslStream (Xamarin bug 15293)
When reading and writing data at the same time over an System.Net.Security.SslStream, an exception will be thrown often. Usually the exception is: Mono.Security.Protocol.Tls.TlsException “Bad record MAC” The issue is that the single TlsCipherSuite instance used for both reading and writing does not synchronize access to the “header” member. If the contents get corrupted the MAC calculation returned by ComputServerRecordMAC or ComputeClientRecordMAC is incorrect. See https://bugzilla.xamarin.com/show_bug.cgi?id=15293. Reproduced in OS X, iOS and Windows.
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