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Revision as of 17:48, 16 August 2018

Enforcing system crypto policies

Since Fedora 21 (Changes/CryptoPolicy) there are policies for the usage of SSL and TLS cryptographic protocols that are enforced system-wide. Each application being added in Fedora must be checked to comply with the policies. Currently the policies are restricted to applications using GnuTLS and OpenSSL, and rpmlint will warn when it detects that some action has to be taken; that detection is based on heuristics and limited to C programs, so manual inspection is recommended. Note however, that there are applications which intentionally set weaker, or custom settings on a purpose (e.g., postfix); those need not adhere to the policy. When in doubt, discuss with the Fedora security team.