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(MFC) PKCS11 Discover Readers and Smart Cards / Tokens

See more PKCS11 Examples

Example showing how to discover the readers (slots) and smart cards and tokens available through a vendor's PKCS11 Cryptoki module.

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

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkPkcs11.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // 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.

    CkPkcs11 pkcs11;

    // Specify the vendor's Cryptoki module DLL / shared lib.
    pkcs11.put_SharedLibPath("aetpkss1.dll");

    bool success = pkcs11.Initialize();
    if (success == false) {
        strOut.append(pkcs11.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Call Discover to discover what's available.
    // Indicate that we only want to return slots (readers) where tokens (smart cards) are present.
    // (If the device is a USB token, such as an ePass300Auto, then by definition it has a "token" present.)
    bool onlyTokensPresent = true;
    CkJsonObject json;
    success = pkcs11.Discover(onlyTokensPresent,json);
    if (success == false) {
        strOut.append(pkcs11.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    json.put_EmitCompact(false);
    strOut.append(json.emit());
    strOut.append("\r\n");

    // Sample JSON output.
    // Code for parsing this JSON is shown below..

    // {
    //   "cryptokiVersion": {
    //     "major": 2,
    //     "minor": 20
    //   },
    //   "manufacturerID": "A.E.T. Europe B.V.",
    //   "libraryDescription": "Cryptographic Token Interface",
    //   "libraryVersion": {
    //     "major": 3,
    //     "minor": 0
    //   },
    //   "slot": [
    //     {
    //       "id": 52482,
    //       "slotDescription": "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0",
    //       "manufacturerID": "SCM Microsystems Inc. SCR33x USB",
    //       "tokenPresent": true,
    //       "removableDevice": true,
    //       "hardwareSlot": true,
    //       "hardwareVersion": {
    //         "major": 0,
    //         "minor": 0
    //       },
    //       "firmwareVersion": {
    //         "major": 0,
    //         "minor": 0
    //       },
    //       "token": {
    //         "label": "chilkat",
    //         "manufacturerID": "A.E.T. Europe B.V.",
    //         "model": "19C40406010D00C0",
    //         "serialNumber": "21619600583C4505",
    //         "flags": [
    //           "CKF_RNG",
    //           "CKF_LOGIN_REQUIRED",
    //           "CKF_USER_PIN_INITIALIZED",
    //           "CKF_TOKEN_INITIALIZED"
    //         ],
    //         "maxSessionCount": 126,
    //         "sessionCount": 0,
    //         "maxRwSessionCount": 126,
    //         "rwSessionCount": 0,
    //         "maxPinLen": 15,
    //         "minPinLen": 4,
    //         "totalPublicMemory": 32767,
    //         "freePublicMemory": 32767,
    //         "totalPrivateMemory": 32767,
    //         "freePrivateMemory": 32767,
    //         "hardwareVersion": {
    //           "major": 0,
    //           "minor": 0
    //         },
    //         "firmwareVersion": {
    //           "major": 0,
    //           "minor": 0
    //         },
    //         "utcTime": "",
    //         "rsa": {
    //           "minKeySize": 768,
    //           "maxKeySize": 2048
    //         },
    //         "mechanism": [
    //           "CKM_RSA_PKCS",
    //           "CKM_RSA_X_509",
    //           "CKM_RSA_PKCS_OAEP",
    //           "CKM_MD5_RSA_PKCS",
    //           "CKM_SHA1_RSA_PKCS",
    //           "CKM_SHA224_RSA_PKCS",
    //           "CKM_SHA256_RSA_PKCS",
    //           "CKM_SHA384_RSA_PKCS",
    //           "CKM_SHA512_RSA_PKCS",
    //           "CKM_RIPEMD160_RSA_PKCS",
    //           "CKM_CPK_ECDSA",
    //           "CKM_CPK_ECDSA_SHA1",
    //           "CKM_CPK_ECIES",
    //           "CKM_CPK_ECIES_STDDH_SHA1KDF_DES3CBC_PAD_SHA1HMAC",
    //           "CKM_CPK_ECIES_STDDH_SHA1KDF_AES128CBC_PAD_SHA1HMAC",
    //           "CKM_CPK_PKCS7_SIGNED",
    //           "CKM_CPK_PKCS7_ENVELOPE_DES3CBC_PAD",
    //           "CKM_RSA_PKCS_PSS",
    //           "CKM_RSA_PKCS_KEY_PAIR_GEN",
    //           "CKM_RC2_KEY_GEN",
    //           "CKM_RC2_ECB",
    //           "CKM_RC2_CBC",
    //           "CKM_RC2_CBC_PAD",
    //           "CKM_RC4_KEY_GEN",
    //           "CKM_RC4",
    //           "CKM_DES_KEY_GEN",
    //           "CKM_DES2_KEY_GEN",
    //           "CKM_DES3_KEY_GEN",
    //           "CKM_DES_ECB",
    //           "CKM_DES_CBC",
    //           "CKM_DES3_ECB",
    //           "CKM_DES3_CBC",
    //           "CKM_DES_CBC_PAD",
    //           "CKM_DES3_CBC_PAD",
    //           "CKM_MD5",
    //           "CKM_SHA_1",
    //           "CKM_SHA224",
    //           "CKM_SHA256",
    //           "CKM_SHA384",
    //           "CKM_SHA512",
    //           "CKM_RIPEMD160"
    //         ]
    //       }
    //     }
    //   ]
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    int id;
    const char *slotDescription = 0;
    bool tokenPresent;
    bool removableDevice;
    bool hardwareSlot;
    int hardwareVersionMajor;
    int hardwareVersionMinor;
    int firmwareVersionMajor;
    int firmwareVersionMinor;
    const char *tokenLabel = 0;
    const char *tokenManufacturerID = 0;
    const char *tokenModel = 0;
    const char *tokenSerialNumber = 0;
    int tokenMaxSessionCount;
    int tokenSessionCount;
    int tokenMaxRwSessionCount;
    int tokenRwSessionCount;
    int tokenMaxPinLen;
    int tokenMinPinLen;
    int tokenTotalPublicMemory;
    int tokenFreePublicMemory;
    int tokenTotalPrivateMemory;
    int tokenFreePrivateMemory;
    int tokenHardwareVersionMajor;
    int tokenHardwareVersionMinor;
    int tokenFirmwareVersionMajor;
    int tokenFirmwareVersionMinor;
    const char *tokenUtcTime = 0;
    int tokenRsaMinKeySize;
    int tokenRsaMaxKeySize;
    int j;
    int count_j;
    const char *strVal = 0;

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    int cryptokiVersionMajor = json.IntOf("cryptokiVersion.major");
    int cryptokiVersionMinor = json.IntOf("cryptokiVersion.minor");
    const char *manufacturerID = json.stringOf("manufacturerID");
    const char *libraryDescription = json.stringOf("libraryDescription");
    int libraryVersionMajor = json.IntOf("libraryVersion.major");
    int libraryVersionMinor = json.IntOf("libraryVersion.minor");
    int i = 0;
    int count_i = json.SizeOfArray("slot");
    while (i < count_i) {
        json.put_I(i);
        id = json.IntOf("slot[i].id");
        slotDescription = json.stringOf("slot[i].slotDescription");
        manufacturerID = json.stringOf("slot[i].manufacturerID");
        tokenPresent = json.BoolOf("slot[i].tokenPresent");
        removableDevice = json.BoolOf("slot[i].removableDevice");
        hardwareSlot = json.BoolOf("slot[i].hardwareSlot");
        hardwareVersionMajor = json.IntOf("slot[i].hardwareVersion.major");
        hardwareVersionMinor = json.IntOf("slot[i].hardwareVersion.minor");
        firmwareVersionMajor = json.IntOf("slot[i].firmwareVersion.major");
        firmwareVersionMinor = json.IntOf("slot[i].firmwareVersion.minor");
        tokenLabel = json.stringOf("slot[i].token.label");
        tokenManufacturerID = json.stringOf("slot[i].token.manufacturerID");
        tokenModel = json.stringOf("slot[i].token.model");
        tokenSerialNumber = json.stringOf("slot[i].token.serialNumber");
        tokenMaxSessionCount = json.IntOf("slot[i].token.maxSessionCount");
        tokenSessionCount = json.IntOf("slot[i].token.sessionCount");
        tokenMaxRwSessionCount = json.IntOf("slot[i].token.maxRwSessionCount");
        tokenRwSessionCount = json.IntOf("slot[i].token.rwSessionCount");
        tokenMaxPinLen = json.IntOf("slot[i].token.maxPinLen");
        tokenMinPinLen = json.IntOf("slot[i].token.minPinLen");
        tokenTotalPublicMemory = json.IntOf("slot[i].token.totalPublicMemory");
        tokenFreePublicMemory = json.IntOf("slot[i].token.freePublicMemory");
        tokenTotalPrivateMemory = json.IntOf("slot[i].token.totalPrivateMemory");
        tokenFreePrivateMemory = json.IntOf("slot[i].token.freePrivateMemory");
        tokenHardwareVersionMajor = json.IntOf("slot[i].token.hardwareVersion.major");
        tokenHardwareVersionMinor = json.IntOf("slot[i].token.hardwareVersion.minor");
        tokenFirmwareVersionMajor = json.IntOf("slot[i].token.firmwareVersion.major");
        tokenFirmwareVersionMinor = json.IntOf("slot[i].token.firmwareVersion.minor");
        tokenUtcTime = json.stringOf("slot[i].token.utcTime");
        tokenRsaMinKeySize = json.IntOf("slot[i].token.rsa.minKeySize");
        tokenRsaMaxKeySize = json.IntOf("slot[i].token.rsa.maxKeySize");
        j = 0;
        count_j = json.SizeOfArray("slot[i].token.flags");
        while (j < count_j) {
            json.put_J(j);
            strVal = json.stringOf("slot[i].token.flags[j]");
            j = j + 1;
        }

        j = 0;
        count_j = json.SizeOfArray("slot[i].token.mechanism");
        while (j < count_j) {
            json.put_J(j);
            strVal = json.stringOf("slot[i].token.mechanism[j]");
            j = j + 1;
        }

        i = i + 1;
    }



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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