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I am developing CT-e 3.0 and NF-e 4.0, in the same cites the need to change the security protocol from SSL to TLS 1.2 with the deadline of 02/04/2018.
In the reception webservice has no information about the protocols, the documentation of both (CT-e and NF-e), leaves a little vague the changes that are necessary.
the application is developed in c# and VB.NET.
Because of this, I searched for implementations on the internet arriving at the following implementation: ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 Or SecurityProtocolType.Ssl
Even implementing this we had no differences and also could not perform the test to know if it is only this change that should be made or if the change should also be made in digital certificate and/ or chain of certificates.
We would like to make sure that these are the only necessary changes?
If you have something more to implement, I would like the contribution of the community.
Note: We use A1 and A3 Certificate.
I believe that’s all it is, but you just happened to come to some different conclusion?
– heringer