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(Excel) PKCS11 Sessions

See more PKCS11 Examples

Sample code showing how to open a PKCS11 session and then later close it.

Note: This example requires Chilkat v9.5.0.88 or later.

Download Excel Class Modules

Chilkat Excel Class Modules

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

Dim pkcs11 As Chilkat.Pkcs11
Set pkcs11 = Chilkat.NewPkcs11

' This is the DLL for the Feitian ePass3003Auto USB token
pkcs11.SharedLibPath = "ShuttleCsp11_3003.dll"


success = pkcs11.Initialize()
If (success = False) Then
    Debug.Print pkcs11.LastErrorText
    Exit Sub
End If

' We need to call Discover to get the slot ID.

onlyTokensPresent = True
Dim json As Chilkat.JsonObject
Set json = Chilkat.NewJsonObject
success = pkcs11.Discover(onlyTokensPresent,json)
If (success = False) Then
    Debug.Print pkcs11.LastErrorText
    Exit Sub
End If

json.EmitCompact = False
Debug.Print json.Emit()

' Sample JSON output..

' {
'   "cryptokiVersion": {
'     "major": 2,
'     "minor": 40
'   },
'   "manufacturerID": "Feitian Technologies Co., Ltd.",
'   "libraryDescription": "EnterSafe PKCS#11 Library.",
'   "libraryVersion": {
'     "major": 1,
'     "minor": 20
'   },
'   "slot": [
'     {
'       "id": 1,
'       "slotDescription": "ES3003 VCR 1",
'       "manufacturerID": "Feitian Technologies Co., Ltd.",
'       "tokenPresent": true,
'       "removableDevice": true,
'       "hardwareSlot": true,
'       "hardwareVersion": {
'         "major": 1,
'         "minor": 0
'       },
'       "firmwareVersion": {
'         "major": 1,
'         "minor": 0
'       },
'       "token": {
'         "label": "ePass3003Auto",
'         "manufacturerID": "Feitian Technologies Co., Ltd.",
'         "model": "ePass3003Auto",
'         "serialNumber": "3C38501007150419",
'         "flags": [
'           "CKF_RNG",
'           "CKF_LOGIN_REQUIRED",
'           "CKF_USER_PIN_INITIALIZED",
'           "CKF_TOKEN_INITIALIZED",
'           "CKF_SECONDARY_AUTHENTICATION",
'           "CKF_USER_PIN_TO_BE_CHANGED"
'         ],
'         "maxSessionCount": 0,
'         "sessionCount": 0,
'         "maxRwSessionCount": 0,
'         "rwSessionCount": 0,
'         "maxPinLen": 16,
'         "minPinLen": 4,
'         "totalPublicMemory": 30000,
'         "freePublicMemory": 27891,
'         "totalPrivateMemory": 34000,
'         "freePrivateMemory": 33768,
'         "hardwareVersion": {
'           "major": 7,
'           "minor": 3
'         },
'         "firmwareVersion": {
'           "major": 7,
'           "minor": 3
'         },
'         "utcTime": "",
'         "mechanism": [
'           "CKM_RSA_PKCS_KEY_PAIR_GEN",
'           "CKM_RSA_PKCS",
'           "CKM_RSA_X_509",
'           "CKM_MD2_RSA_PKCS",
'           "CKM_MD5_RSA_PKCS",
'           "CKM_SHA1_RSA_PKCS",
'           "CKM_RSA_PKCS_OAEP",
'           "CKM_RSA_X9_31_KEY_PAIR_GEN",
'           "CKM_RSA_X9_31",
'           "CKM_SHA1_RSA_X9_31",
'           "CKM_RSA_PKCS_PSS",
'           "CKM_SHA1_RSA_PKCS_PSS",
'           "CKM_SHA256_RSA_PKCS",
'           "CKM_SHA384_RSA_PKCS",
'           "CKM_SHA512_RSA_PKCS",
'           "CKM_SHA256_RSA_PKCS_PSS",
'           "CKM_SHA384_RSA_PKCS_PSS",
'           "CKM_SHA512_RSA_PKCS_PSS",
'           "CKM_RC2_KEY_GEN",
'           "CKM_RC2_ECB",
'           "CKM_RC2_CBC",
'           "CKM_RC4_KEY_GEN",
'           "CKM_RC4",
'           "CKM_DES_KEY_GEN",
'           "CKM_DES_ECB",
'           "CKM_DES_CBC",
'           "CKM_DES3_KEY_GEN",
'           "CKM_DES3_ECB",
'           "CKM_DES3_CBC",
'           "CKM_DES_OFB64",
'           "CKM_DES_OFB8",
'           "CKM_DES_CFB64",
'           "CKM_DES_CFB8",
'           "CKM_MD2",
'           "CKM_MD5",
'           "CKM_SHA_1",
'           "CKM_SHA256",
'           "CKM_SHA224",
'           "CKM_SHA384",
'           "CKM_SHA512",
'           "CKM_GENERIC_SECRET_KEY_GEN",
'           "CKM_AES_KEY_GEN",
'           "CKM_AES_ECB",
'           "CKM_AES_CBC"
'         ],
'         "rsa": {
'           "minKeySize": 512,
'           "maxKeySize": 2048
'         }
'       }
'     }
'   ]
' }

' Make sure we have at least one slot.
If (json.SizeOfArray("slot") <= 0) Then
    Debug.Print "No occuplied slots."
    Exit Sub
End If

' Get the ID of the 1st slot

slotID = json.IntOf("slot[0].id")

' Open a read/write session.

readWrite = True
success = pkcs11.OpenSession(slotID,readWrite)
If (success = False) Then
    Debug.Print pkcs11.LastErrorText
    Exit Sub
End If

' Do whatever is needed...
' ...
' ...

' When finished, close the session.
' It is important to close the session (memory leaks will occur if the session is not properly closed).

success = pkcs11.CloseSession()
If (success = False) Then
    Debug.Print pkcs11.LastErrorText
    Exit Sub
End If

Debug.Print "PKCS11 session successfully opened and closed."

 

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