--ca-native

Use the operating system's native CA store for certificate verification.

This option is independent of other CA certificate locations set at run time or build time. Those locations are searched in addition to the native CA store.

This option works with OpenSSL and its forks (LibreSSL, BoringSSL, etc) on Windows. (Added in 7.71.0)

This option works with wolfSSL on Windows, Linux (Debian, Ubuntu, Gentoo, Fedora, RHEL), macOS, Android and iOS. (Added in 8.3.0)

This option works with GnuTLS. (Added in 8.5.0)

This option works with rustls on Windows, macOS, Android and iOS. On Linux it is equivalent to using the Mozilla CA certificate bundle. When used with rustls only the native CA store is consulted, not other locations set at run time or build time. (Added in 8.13.0)

This option currently has no effect for Schannel. This is the native TLS library from Microsoft, that by default uses the native CA store for verification unless overridden by a CA certificate location setting.