For all the people commenting, the ITAR rules still apply for TLS, if you want to use TLS in an app for iOS/Android, one of the requirements is to get an ITAR exemption as part of the app review [1].
The US sanctions are imposed on entire nations (eg Iran), so LetsEncrypt have no option but to state in their conditions that their service is not available. They don't have a choice as a US organization operating under US law.
Whether they choose to enforce that through technical means (eg blocking IPs etc) is up to them.
The US sanctions are imposed on entire nations (eg Iran), so LetsEncrypt have no option but to state in their conditions that their service is not available. They don't have a choice as a US organization operating under US law.
Whether they choose to enforce that through technical means (eg blocking IPs etc) is up to them.
[1] https://developer.apple.com/documentation/security/complying...