Paul Haddad
Grabbed a new Mac App Store receipt. They are back to using SHA1 and it now has an expiration date in 2023.pic.twitter.com/HgenGzPLaB
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@mjtsai So if the certificate is trusted and was valid at the time it was used you don’t care if it is expired.
Matt Stevens
Michael Tsai
@mattstevens Right. My question is, does Apple's sample code implicitly use the current date? (Guess: No. So this wouldn't be a problem.)
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@mjtsai Looks like no and you’re right, it’s not an issue if you don’t check the validity period at all. -
@mjtsai I was wrong, after testing that code will verify the chain against the current time unless otherwise configured. - View other replies
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@mattstevens curious: how to you tell PKCS7_verify() to check (or not) the creation date? Can't find that in the docs :-( -
@rbrockerhoff Through the X509_STORE’s verification parameters: https://gist.github.com/mattstevens/fa099d99f2fa7247c65e … -
@mattstevens great, thanks a lot. Will try to implement that now. -
@mattstevens OK, my version of OpenSSL doesn't have X509_V_FLAG_NO_CHECK_TIME yet, but no problem; it works now. Thanks again!
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Rainer Brockerhoff
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