Lists all the object identifiers of the X509 extensions of the PKIX profile.
Extensions are addiitonal attributes which can be inserted in a X509
v3 certificate. For example a "Driving License Certificate" could have
the driving license number as a extension.
Extensions are represented as a sequence of the extension identifier
(Object Identifier), a boolean flag stating whether the extension is to
be treated as being critical and the extension value itself (this is again
a DER encoding of the extension value).
See Also:Extension version: 1.8 author: Amit Kapoor author: Hemma Prafullchandra
ExtendedKeyUsage_Id Identifies one or more purposes for which the certified public key
may be used, in addition to or in place of the basic purposes
indicated in the key usage extension field.
HoldInstructionCode_Id This extension provides a registered instruction identifier indicating
the action to be taken, after encountering a certificate that has been
placed on hold.
InvalidityDate_Id Identifies the date on which it is known or suspected that the private
key was compromised or that the certificate otherwise became invalid.
NameConstraints_Id Provides for permitted and excluded subtrees that place restrictions
on names that may be included within a certificate issued by a given CA.
Identifies one or more purposes for which the certified public key
may be used, in addition to or in place of the basic purposes
indicated in the key usage extension field.
This extension provides a registered instruction identifier indicating
the action to be taken, after encountering a certificate that has been
placed on hold.