(C#) List Keys in a Microsoft Storage Provider

Demonstrates how to list the keys found in a Microsoft CNG Storage Provider, or a Legacy CryptoAPI Storage Provider.

Important: This example requires Chilkat v9.5.0.83 or greater.

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// This example requires Chilkat v9.5.0.83 or greater.

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

bool success = keyCon.GetKeys("Microsoft Software Key Storage Provider",json);
if (success != true) {
    Debug.WriteLine(keyCon.LastErrorText);
    return;
}

Debug.WriteLine(json.Emit());

// Sample JSON returned by GetKeys

// If the storage provider is CNG, then each key has an "algId".
// If the storage provider is legacy CryptoAPI, then each key has a "provType" (see below)

// If the storage provider is CNG:
// {
//   "storageProvider": "Microsoft Software Key Storage Provider",
//   "key": [
//     {
//       "name": "cn=Chilkat Admin,ou=Persona Not Verified,ou=For Test Purposes Only Decryption Key",
//       "machineKey": false,
//       "algId": "ECDH_P384"
//     },
//     {
//       "name": "CD1CC265-0DA0-4230-8419-CB6F808FE688",
//       "machineKey": false,
//       "algId": "SP800_108_CTR_HMAC"
//     },
//     {
//       "name": "{FF14487C-0AED-471E-8FAD-4BF757C2195C}",
//       "machineKey": false,
//       "algId": "ECDH_P256"
//     },
//     {
//       "name": "{869FD9A6-D815-44FD-A916-4D4A708CD949}",
//       "machineKey": false,
//       "algId": "ECDH_P256"
//     },
//     {
//       "name": "D530ECA9-FF5A-4A6A-AAB3-6EC1870F2CC3",
//       "machineKey": false,
//       "algId": "SP800_108_CTR_HMAC"
//     },
//     {
//       "name": "{F524771E-93C0-4D56-8DE7-2FE3CB5BD837}",
//       "machineKey": false,
//       "algId": "RSA"
//     },
//     {
//       "name": "Microsoft Connected Devices Platform device certificate",
//       "machineKey": false,
//       "algId": "ECDSA_P256"
//     }
//   ]
// }

// If the storage provider is legacy CryptoAPI:

// {
//   "storageProvider": "Microsoft Base Cryptographic Provider v1.0",
//   "key": [
//     {
//       "name": "{48D7FF88-A52E-41E2-9EBD-0CC7E880DC65}",
//       "machineKey": false,
//       "provType": "PROV_RSA_FULL"
//     },
//     {
//       "name": "{CBF7A33A-F9CF-4C30-8A06-94A5C7981058}",
//       "machineKey": false,
//       "provType": "PROV_RSA_FULL"
//     }
//   ]
// }

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

string name;
bool machineKey;
string algId;
string provType;

string storageProvider = json.StringOf("storageProvider");
int i = 0;
int count_i = json.SizeOfArray("key");
while (i < count_i) {
    json.I = i;
    name = json.StringOf("key[i].name");
    machineKey = json.BoolOf("key[i].machineKey");
    if (json.HasMember("key[i].algId") == true) {
        algId = json.StringOf("key[i].algId");
    }

    if (json.HasMember("key[i].provType") == true) {
        provType = json.StringOf("key[i].provType");
    }

    i = i + 1;
}