Hey Wenyi,
Sorry, I cannot help with the time one, but "partial chain" is how
virtually any other crypto-solution works out-of-the-box. Basically
there is a disagreement about what defines a root certificate, and while
some think it is the OpenSSL default of requiring a self-signed
certificate for root, many people including myself strongly disagree and
do not believe it follows from the RFCs. I'm not aware of any bad
security implications of either model. So, this merely allows any
certificate in the chain (the top one may be self-signed *if* it even is
a certificate, it may just as well be a trusted public key for all we
know) to be eligible to be added to the trust store and root a trust chain.
Further reading: https://github.com/openssl/openssl/issues/7871
Cc CryptoPkg maintainers and edk2-devel for further feedback
Best regards,
Marvin
On 27/09/2021 10:53, wenyi,xie via groups.io wrote:
Hello,
I have a question about flag set in X509_STORE. Does anyone know why need to
set flags X509_V_FLAG_PARTIAL_CHAIN and X509_V_FLAG_NO_CHECK_TIME to X509Store
in TlsNew() (CryptoPkg\Library\TlsLib\TlsInit.c)
Thanks
Wenyi
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