|
private static ConvertValue ( |
||
| attribute | Attribute whose value should be read | |
| return | byte[] | |
/// <summary>
/// Checks whether object attributes match PKCS#11 URI
/// </summary>
/// <param name="pkcs11Uri">PKCS#11 URI</param>
/// <param name="objectAttributes">Object attributes</param>
/// <returns>True if object attributes match PKCS#11 URI</returns>
public static bool Matches(Pkcs11Uri pkcs11Uri, List <CK_ATTRIBUTE> objectAttributes)
{
if (pkcs11Uri == null)
{
throw new ArgumentNullException("pkcs11Uri");
}
if (objectAttributes == null)
{
throw new ArgumentNullException("objectAttributes");
}
NativeULong ckaClassType = ConvertUtils.UInt32FromCKA(CKA.CKA_CLASS);
CKO? ckaClassValue = null;
bool ckaClassFound = false;
NativeULong ckaLabelType = ConvertUtils.UInt32FromCKA(CKA.CKA_LABEL);
string ckaLabelValue = null;
bool ckaLabelFound = false;
NativeULong ckaIdType = ConvertUtils.UInt32FromCKA(CKA.CKA_ID);
byte[] ckaIdValue = null;
bool ckaIdFound = false;
foreach (CK_ATTRIBUTE objectAttribute in objectAttributes)
{
CK_ATTRIBUTE attribute = objectAttribute;
if (attribute.type == ckaClassType)
{
NativeULong nativeUlongValue = 0;
CkaUtils.ConvertValue(ref attribute, out nativeUlongValue);
ckaClassValue = ConvertUtils.UInt32ToCKO(nativeUlongValue);
ckaClassFound = true;
}
else if (attribute.type == ckaLabelType)
{
CkaUtils.ConvertValue(ref attribute, out ckaLabelValue);
ckaLabelFound = true;
}
else if (objectAttribute.type == ckaIdType)
{
CkaUtils.ConvertValue(ref attribute, out ckaIdValue);
ckaIdFound = true;
}
if (ckaClassFound && ckaLabelFound && ckaIdFound)
{
break;
}
}
if ((!ckaClassFound) && (pkcs11Uri.Type != null))
{
throw new Pkcs11UriException("CKA_CLASS attribute is not present in the list of object attributes");
}
if ((!ckaLabelFound) && (pkcs11Uri.Object != null))
{
throw new Pkcs11UriException("CKA_LABEL attribute is not present in the list of object attributes");
}
if ((!ckaIdFound) && (pkcs11Uri.Id != null))
{
throw new Pkcs11UriException("CKA_ID attribute is not present in the list of object attributes");
}
return(Pkcs11UriSharedUtils.Matches(pkcs11Uri, ckaClassValue, ckaLabelValue, ckaIdValue));
}
