Extract a CA certificate bundle from macOS Keychain

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How to generate a PEM file containing the trusted CA certificates in your macOS Keychain. As described in this answer on Stack Exchange you can use the security tool added in Mac OS X 10.3: security find-certificate -a -p /System/Library/Keychains/SystemRootCertificates.keychain > cacerts.pem security find-certificate -a -p /Library/Keychains/System.keychain >> cacerts.pem If there are missing CA…

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