Update wiki Private CA/Self Signed certs

[stshontikidis]

Subject of the issue

Wiki entry on working with private CA issuers and self signed certs has some example commands that are no longer valid for iOS 13 and macOS 10.15. https://support.apple.com/en-us/HT210176 Wiki should reflect that valid server certificate can not have expiry > 825 and ExtendedKeyUsage = Server Authentication

I did a little writeup here https://www.reddit.com/r/Bitwarden/comments/ep9qyz/self_signed_certs_iosmacos_issue_solved/

Your environment

• Bitwarden_rs version: 2.12.1
• Install method: Docker Image
• Clients used: iOS app, macOS app, chrome
• Reverse proxy and version: nginx/1.10.3
• Other relevant information: iOS 13.3

Steps to reproduce

Followed steps in wiki https://github.com/dani-garcia/bitwarden_rs/wiki/Private-CA-and-self-signed-certs-that-work-with-Chrome and then add certs to iOS >= 13.0.

Expected behaviour

SSL handshake should be successful

Actual behaviour

iOS app has generic server connection error

Relevant logs

nginx 2020/01/15 16:12:31 [info] 13834#13834: 44031 peer closed connection in SSL handshake while SSL handshaking, client: 192.168.1.42, server: 0.0.0.0:443 2020/01/15 16:13:25 [info] 13834#13834: 44032 peer closed connection in SSL handshake while SSL handshaking, client: 192.168.1.42, server: 0.0.0.0:443

[stshontikidis]

I am willing to update the wiki but I am not involved in the project and did not just want to edit unannounced.

[dani-garcia]

Yeah of course, I'd appreciate if you could update the wiki to include the info you mention, thanks!

[stshontikidis]

Made the small update to ext file and server cert command, along with note to source of apple requirements. Take a look and I think we can close this thread.

[dani-garcia]

Looks good to me, thanks!