private PrivateKeyUsagePeriod(ASN1Sequence seq)
{
Enumeration en = seq.getObjects();
while (en.hasMoreElements())
{
ASN1TaggedObject tObj = (ASN1TaggedObject)en.nextElement();
if (tObj.getTagNo() == 0)
{
_notBefore = DERGeneralizedTime.getInstance(tObj, false);
}
else if (tObj.getTagNo() == 1)
{
_notAfter = DERGeneralizedTime.getInstance(tObj, false);
}
}
}