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Go
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.
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success := false
// 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.
pkcs11 := chilkat.NewPkcs11()
// Specify the vendor's Cryptoki module DLL / shared lib.
pkcs11.SetSharedLibPath("aetpkss1.dll")
success = pkcs11.Initialize()
if success == false {
fmt.Println(pkcs11.LastErrorText())
pkcs11.DisposePkcs11()
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.)
onlyTokensPresent := true
json := chilkat.NewJsonObject()
success = pkcs11.Discover(onlyTokensPresent,json)
if success == false {
fmt.Println(pkcs11.LastErrorText())
pkcs11.DisposePkcs11()
json.DisposeJsonObject()
return
}
json.SetEmitCompact(false)
fmt.Println(*json.Emit())
// 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 int
var slotDescription *string = new(string)
var tokenPresent bool
var removableDevice bool
var hardwareSlot bool
var hardwareVersionMajor int
var hardwareVersionMinor int
var firmwareVersionMajor int
var firmwareVersionMinor int
var tokenLabel *string = new(string)
var tokenManufacturerID *string = new(string)
var tokenModel *string = new(string)
var tokenSerialNumber *string = new(string)
var tokenMaxSessionCount int
var tokenSessionCount int
var tokenMaxRwSessionCount int
var tokenRwSessionCount int
var tokenMaxPinLen int
var tokenMinPinLen int
var tokenTotalPublicMemory int
var tokenFreePublicMemory int
var tokenTotalPrivateMemory int
var tokenFreePrivateMemory int
var tokenHardwareVersionMajor int
var tokenHardwareVersionMinor int
var tokenFirmwareVersionMajor int
var tokenFirmwareVersionMinor int
var tokenUtcTime *string = new(string)
var tokenRsaMinKeySize int
var tokenRsaMaxKeySize int
var j int
var count_j int
var strVal *string = new(string)
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
cryptokiVersionMajor := json.IntOf("cryptokiVersion.major")
cryptokiVersionMinor := json.IntOf("cryptokiVersion.minor")
manufacturerID := json.StringOf("manufacturerID")
libraryDescription := json.StringOf("libraryDescription")
libraryVersionMajor := json.IntOf("libraryVersion.major")
libraryVersionMinor := json.IntOf("libraryVersion.minor")
i := 0
count_i := json.SizeOfArray("slot")
for i < count_i {
json.SetI(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")
for j < count_j {
json.SetJ(j)
strVal = json.StringOf("slot[i].token.flags[j]")
j = j + 1
}
j = 0
count_j = json.SizeOfArray("slot[i].token.mechanism")
for j < count_j {
json.SetJ(j)
strVal = json.StringOf("slot[i].token.mechanism[j]")
j = j + 1
}
i = i + 1
}
pkcs11.DisposePkcs11()
json.DisposeJsonObject()