private static string ConfirmedOidValue(IFindPal findPal, object findValue, OidGroup oidGroup)
{
string maybeOid = ConfirmedCast <string>(findValue);
if (maybeOid.Length == 0)
{
throw new ArgumentException(SR.Argument_InvalidOidValue);
}
return(findPal.NormalizeOid(maybeOid, oidGroup));
}
public static X509Certificate2Collection FindFromCollection(
X509Certificate2Collection coll,
X509FindType findType,
object findValue,
bool validOnly)
{
X509Certificate2Collection results = new X509Certificate2Collection();
using (IFindPal findPal = OpenPal(coll, results, validOnly))
{
switch (findType)
{
case X509FindType.FindByThumbprint:
{
byte[] thumbPrint = ConfirmedCast <string>(findValue).LaxDecodeHexString();
findPal.FindByThumbprint(thumbPrint);
break;
}
case X509FindType.FindBySubjectName:
{
string subjectName = ConfirmedCast <string>(findValue);
findPal.FindBySubjectName(subjectName);
break;
}
case X509FindType.FindBySubjectDistinguishedName:
{
string subjectDistinguishedName = ConfirmedCast <string>(findValue);
findPal.FindBySubjectDistinguishedName(subjectDistinguishedName);
break;
}
case X509FindType.FindByIssuerName:
{
string issuerName = ConfirmedCast <string>(findValue);
findPal.FindByIssuerName(issuerName);
break;
}
case X509FindType.FindByIssuerDistinguishedName:
{
string issuerDistinguishedName = ConfirmedCast <string>(findValue);
findPal.FindByIssuerDistinguishedName(issuerDistinguishedName);
break;
}
case X509FindType.FindBySerialNumber:
{
string decimalOrHexString = ConfirmedCast <string>(findValue);
// FindBySerialNumber allows the input format to be either in
// hex or decimal. Since we can't know which one was intended,
// it compares against both interpretations and treats a match
// of either as a successful find.
// string is big-endian
byte[] hexBytes = decimalOrHexString.LaxDecodeHexString();
BigInteger hexValue = new BigInteger(hexBytes, isUnsigned: true, isBigEndian: true);
BigInteger decimalValue = LaxParseDecimalBigInteger(decimalOrHexString);
findPal.FindBySerialNumber(hexValue, decimalValue);
break;
}
case X509FindType.FindByTimeValid:
{
DateTime dateTime = ConfirmedCast <DateTime>(findValue);
findPal.FindByTimeValid(dateTime);
break;
}
case X509FindType.FindByTimeNotYetValid:
{
DateTime dateTime = ConfirmedCast <DateTime>(findValue);
findPal.FindByTimeNotYetValid(dateTime);
break;
}
case X509FindType.FindByTimeExpired:
{
DateTime dateTime = ConfirmedCast <DateTime>(findValue);
findPal.FindByTimeExpired(dateTime);
break;
}
case X509FindType.FindByTemplateName:
{
string expected = ConfirmedCast <string>(findValue);
findPal.FindByTemplateName(expected);
break;
}
case X509FindType.FindByApplicationPolicy:
{
string oidValue = ConfirmedOidValue(findPal, findValue, OidGroup.Policy);
findPal.FindByApplicationPolicy(oidValue);
break;
}
case X509FindType.FindByCertificatePolicy:
{
string oidValue = ConfirmedOidValue(findPal, findValue, OidGroup.Policy);
findPal.FindByCertificatePolicy(oidValue);
break;
}
case X509FindType.FindByExtension:
{
string oidValue = ConfirmedOidValue(findPal, findValue, OidGroup.ExtensionOrAttribute);
findPal.FindByExtension(oidValue);
break;
}
case X509FindType.FindByKeyUsage:
{
X509KeyUsageFlags keyUsage = ConfirmedX509KeyUsage(findValue);
findPal.FindByKeyUsage(keyUsage);
break;
}
case X509FindType.FindBySubjectKeyIdentifier:
{
byte[] keyIdentifier = ConfirmedCast <string>(findValue).LaxDecodeHexString();
findPal.FindBySubjectKeyIdentifier(keyIdentifier);
break;
}
default:
throw new CryptographicException(SR.Cryptography_X509_InvalidFindType);
}
}
return(results);
}
