The date flags determine the ASN.1 encoding of the validity period in the certificate.
Value
Name
Description
0x00
DEFAULT_YEAR_ENCODING
There is nothing specific to do.
1
PKI_HOLD_INSTRUCTION_CALL_ISSUER
The person trying to verify the certificate should contact the certificate’s issuer for information.
2
PKI_HOLD_INSTRUCTION_REJECT
The X.509 default for date encoding (see RFC 2459 for more details).