Updated to fix an error with token from Cryptas and nCipher (attribute length can be 0xffffffff)

[xnop]

attribute length conversion cause an error in Pkcs11Admin tool with Cryptas or nCipher HSM

[jariq]

Thanks for the PR but it's quite difficult for me to review your changes without any description.
Could you please provide more information about the attribute that caused you a problem and attach log from Pkcs11Admin?

[xnop]

Sure I will send you more details about the attribute. The exception is risen in GetAttributeValue functions and I made changes in ConvertValue too, if I remember, it occurred when I reloaded the the library module.

BTW, the version 0.4 of Pkcs11Admin works fine, no error with both HSMs.

[xnop]

The attribute that rises an exception is :

CKA_WRAP_TEMPLATE = (CKF.CKF_ARRAY_ATTRIBUTE | 0x00000211)

the content of item 17 of attributes of a RSA public key with TicTok token from Cryptas:

•   [17]	{Net.Pkcs11Interop.LowLevelAPI41.CK_ATTRIBUTE}	Net.Pkcs11Interop.LowLevelAPI41.CK_ATTRIBUTE
    @type	0x40000211	uint
  

•   value	0x0000000000000000	System.IntPtr
    valueLen	0xffffffff	uint
  

occurs when launching the application:

Pkcs11Interop.dll!Net.Pkcs11Interop.HighLevelAPI41.Session.GetAttributeValue(Net.Pkcs11Interop.HighLevelAPI.IObjectHandle objectHandle, System.Collections.Generic.List attributes) Line 617 C#
Pkcs11Admin.dll!Net.Pkcs11Admin.Pkcs11Slot.ReadKeys(Net.Pkcs11Interop.Common.CKO objectClass, Net.Pkcs11Admin.Configuration.ClassAttributesDefinition keyAttributes) Line 580 C#
Pkcs11Admin.dll!Net.Pkcs11Admin.Pkcs11Slot.ReadKeys() Line 607 C#
Pkcs11Admin.dll!Net.Pkcs11Admin.Pkcs11Slot.Reload(bool onlySlotInfo) Line 353 C#
Pkcs11Admin.dll!Net.Pkcs11Admin.Pkcs11Slot.Reload() Line 241 C#

and while quitting the application:

Pkcs11Interop.dll!Net.Pkcs11Interop.LowLevelAPI41.CkaUtils.ConvertValue(ref Net.Pkcs11Interop.LowLevelAPI41.CK_ATTRIBUTE attribute, out Net.Pkcs11Interop.LowLevelAPI41.CK_ATTRIBUTE[] value) Line 369 C#
Pkcs11Interop.dll!Net.Pkcs11Interop.HighLevelAPI41.ObjectAttribute.FreeAttribute(ref Net.Pkcs11Interop.LowLevelAPI41.CK_ATTRIBUTE attribute) Line 702 C#
Pkcs11Interop.dll!Net.Pkcs11Interop.HighLevelAPI41.ObjectAttribute.Dispose(bool disposing) Line 687 C#
Pkcs11Interop.dll!Net.Pkcs11Interop.HighLevelAPI41.ObjectAttribute.~ObjectAttribute() Line 720 C#

Hope this helps.

Please let me know whether your need more details or a trace with pkcs11-logger.

Daniel

[xnop]

logs.zip
Please find the logs for TicTok and nCipher HSM. Hope this helps.