The PKCS12Util has been modified such that it stores the certs and
keys in PKCS12 object instead of PFX object. The PKCS12 object can
be loaded either from NSS database or PKCS #12 file. The PKCS12
object can later be stored into NSS database or PKCS #12 file.
https://fedorahosted.org/pki/ticket/1742
This depends on patch #684.
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Endi S. Dewata