(.NET Core C#) ScMinidriver - Get CSP Container Map for Smart Card or USB Token

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Returns the contents of the CSP container map file (cmapfile). This gives an overview of what key containers and certificates exist in the smart card from a CSP's point of view.

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

Chilkat.ScMinidriver scmd = new Chilkat.ScMinidriver();

// Reader names (smart card readers or USB tokens) can be discovered
// via PCSC List Readers or PCSC Find Smart Cards
string readerName = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0";
bool success = scmd.AcquireContext(readerName);
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;

success = scmd.GetCspContainerMap(json);
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
    return;
}

Debug.WriteLine(json.Emit());

// Here is sample output:
// See below for sample code to parse the JSON.

// --------------------------------------------------------------
// Some notes:
// 
// 1) Empty containers are not listed.
// 2) The "index" is the index of the key container on the card.
//    Note that in the example output below, the card has 4 occupied containers
//    at indexes 0, 1, 2, and 5.
// 3) If you see a key size (in bits) equal to 0, it means that key does not exist.
// 4) A container can potentially contain 2 keys + certificates -- a key for signing (also known as 
//    the "signature" key), and a key for authentication/authorization (also known as the 
//    "key exchange" key).
// 5) It is possible for a key to exist without the certificate.  For example, in the results
//    below there is a 2048-bit key-exchange key at index 1, but no certificate.
// 6) A certificate belonging to the key-exchange key is contained in the "kexCert" JSON member,
//    a certificate belonging to the signature key is contained in the "sigCert" JSON member (not shown below).
// --------------------------------------------------------------

// {
//   "containers": [
//     {
//       "index": 0,
//       "guid": "CertReq-PIVKeyC910-205fc3c2-19fe--42448",
//       "default": true,
//       "sigKeySizeBits": 0,
//       "kexKeySizeBits": 2048,
//       "kexCert": {
//         "serialNum": "15FBFBCF00010000313D",
//         "issuerCN": "PIVKey Device Certificate Authority",
//         "subjectCN": "PIVKey Device Certificate Authority"
//       }
//     },
//     {
//       "index": 1,
//       "guid": "{7b3c32dd-e992-c58f-0822-67d72fd52d43}",
//       "default": false,
//       "sigKeySizeBits": 0,
//       "kexKeySizeBits": 2048
//     },
//     {
//       "index": 2,
//       "guid": "{57547a77-18e7-7516-f5da-6aee13b46bbc}",
//       "default": false,
//       "sigKeySizeBits": 0,
//       "kexKeySizeBits": 2048
//     },
//     {
//       "index": 5,
//       "guid": "{306fd6da-9954-4f75-95c0-178f607a41fb}",
//       "default": false,
//       "sigKeySizeBits": 0,
//       "kexKeySizeBits": 2048,
//       "kexCert": {
//         "serialNum": "17C1B793A24D1A81490F5F768E6D23A5",
//         "issuerCN": "Matt",
//         "subjectCN": "Matt"
//       }
//     }
//   ]
// }

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

int index;
string guid;
bool default;
int sigKeySizeBits;
int kexKeySizeBits;
string kexCertSerialNum;
string kexCertIssuerCN;
string kexCertSubjectCN;
string sigCertSerialNum;
string sigCertIssuerCN;
string sigCertSubjectCN;

int i = 0;
int count_i = json.SizeOfArray("containers");
while (i < count_i) {
    json.I = i;
    index = json.IntOf("containers[i].index");
    guid = json.StringOf("containers[i].guid");
    default = json.BoolOf("containers[i].default");
    sigKeySizeBits = json.IntOf("containers[i].sigKeySizeBits");
    kexKeySizeBits = json.IntOf("containers[i].kexKeySizeBits");
    kexCertSerialNum = json.StringOf("containers[i].kexCert.serialNum");
    kexCertIssuerCN = json.StringOf("containers[i].kexCert.issuerCN");
    kexCertSubjectCN = json.StringOf("containers[i].kexCert.subjectCN");
    sigCertSerialNum = json.StringOf("containers[i].sigCert.serialNum");
    sigCertIssuerCN = json.StringOf("containers[i].sigCert.issuerCN");
    sigCertSubjectCN = json.StringOf("containers[i].sigCert.subjectCN");
    i = i + 1;
}

// Delete the context when finished with the card.
success = scmd.DeleteContext();
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
}