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PKCS11 Discover Readers and Smart Cards / Tokens
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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.
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const std = @import("std");
const chilkat = @import("chilkat");
pub fn main(init: std.process.Init) !void {
const alloc = init.arena.allocator();
// 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.
const pkcs11 = try chilkat.Pkcs11.init();
defer pkcs11.deinit();
// Specify the vendor's Cryptoki module DLL / shared lib.
pkcs11.setSharedLibPath("aetpkss1.dll");
pkcs11.initialize() catch {
std.debug.print("{s}\n", .{try pkcs11.getLastErrorText(alloc)});
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.)
const only_tokens_present = true;
const json = try chilkat.JsonObject.init();
defer json.deinit();
pkcs11.discover(only_tokens_present, json) catch {
std.debug.print("{s}\n", .{try pkcs11.getLastErrorText(alloc)});
return;
};
json.setEmitCompact(false);
std.debug.print("{s}\n", .{try json.emit(alloc)});
// 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
var id: i32 = 0;
var slot_description: [:0]const u8 = "";
var token_present: bool = false;
var removable_device: bool = false;
var hardware_slot: bool = false;
var hardware_version_major: i32 = 0;
var hardware_version_minor: i32 = 0;
var firmware_version_major: i32 = 0;
var firmware_version_minor: i32 = 0;
var token_label: [:0]const u8 = "";
var token_manufacturer_id: [:0]const u8 = "";
var token_model: [:0]const u8 = "";
var token_serial_number: [:0]const u8 = "";
var token_max_session_count: i32 = 0;
var token_session_count: i32 = 0;
var token_max_rw_session_count: i32 = 0;
var token_rw_session_count: i32 = 0;
var token_max_pin_len: i32 = 0;
var token_min_pin_len: i32 = 0;
var token_total_public_memory: i32 = 0;
var token_free_public_memory: i32 = 0;
var token_total_private_memory: i32 = 0;
var token_free_private_memory: i32 = 0;
var token_hardware_version_major: i32 = 0;
var token_hardware_version_minor: i32 = 0;
var token_firmware_version_major: i32 = 0;
var token_firmware_version_minor: i32 = 0;
var token_utc_time: [:0]const u8 = "";
var token_rsa_min_key_size: i32 = 0;
var token_rsa_max_key_size: i32 = 0;
var j: i32 = 0;
var count_j: i32 = 0;
var str_val: [:0]const u8 = "";
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
_ = json.intOf("cryptokiVersion.major");
_ = json.intOf("cryptokiVersion.minor");
var manufacturer_id: [:0]const u8 = try json.stringOf(alloc, "manufacturerID");
_ = try json.stringOf(alloc, "libraryDescription");
_ = json.intOf("libraryVersion.major");
_ = json.intOf("libraryVersion.minor");
var i: i32 = 0;
const count_i = json.sizeOfArray("slot");
while (i < count_i) {
json.setI(i);
id = json.intOf("slot[i].id");
slot_description = try json.stringOf(alloc, "slot[i].slotDescription");
manufacturer_id = try json.stringOf(alloc, "slot[i].manufacturerID");
token_present = json.boolOf("slot[i].tokenPresent");
removable_device = json.boolOf("slot[i].removableDevice");
hardware_slot = json.boolOf("slot[i].hardwareSlot");
hardware_version_major = json.intOf("slot[i].hardwareVersion.major");
hardware_version_minor = json.intOf("slot[i].hardwareVersion.minor");
firmware_version_major = json.intOf("slot[i].firmwareVersion.major");
firmware_version_minor = json.intOf("slot[i].firmwareVersion.minor");
token_label = try json.stringOf(alloc, "slot[i].token.label");
token_manufacturer_id = try json.stringOf(alloc, "slot[i].token.manufacturerID");
token_model = try json.stringOf(alloc, "slot[i].token.model");
token_serial_number = try json.stringOf(alloc, "slot[i].token.serialNumber");
token_max_session_count = json.intOf("slot[i].token.maxSessionCount");
token_session_count = json.intOf("slot[i].token.sessionCount");
token_max_rw_session_count = json.intOf("slot[i].token.maxRwSessionCount");
token_rw_session_count = json.intOf("slot[i].token.rwSessionCount");
token_max_pin_len = json.intOf("slot[i].token.maxPinLen");
token_min_pin_len = json.intOf("slot[i].token.minPinLen");
token_total_public_memory = json.intOf("slot[i].token.totalPublicMemory");
token_free_public_memory = json.intOf("slot[i].token.freePublicMemory");
token_total_private_memory = json.intOf("slot[i].token.totalPrivateMemory");
token_free_private_memory = json.intOf("slot[i].token.freePrivateMemory");
token_hardware_version_major = json.intOf("slot[i].token.hardwareVersion.major");
token_hardware_version_minor = json.intOf("slot[i].token.hardwareVersion.minor");
token_firmware_version_major = json.intOf("slot[i].token.firmwareVersion.major");
token_firmware_version_minor = json.intOf("slot[i].token.firmwareVersion.minor");
token_utc_time = try json.stringOf(alloc, "slot[i].token.utcTime");
token_rsa_min_key_size = json.intOf("slot[i].token.rsa.minKeySize");
token_rsa_max_key_size = json.intOf("slot[i].token.rsa.maxKeySize");
j = 0;
count_j = json.sizeOfArray("slot[i].token.flags");
while (j < count_j) {
json.setJ(j);
str_val = try json.stringOf(alloc, "slot[i].token.flags[j]");
j = j + 1;
}
j = 0;
count_j = json.sizeOfArray("slot[i].token.mechanism");
while (j < count_j) {
json.setJ(j);
str_val = try json.stringOf(alloc, "slot[i].token.mechanism[j]");
j = j + 1;
}
i = i + 1;
}
}