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(C#) ScMinidriver - Get Public Keys from Smart Card Key ContainerSee more ScMinidriver ExamplesDemonstrates how to query a key container on a smart card (or USB token) to get the public part of the private keys that are present. A key container can hold two separate private keys -- one in the "signature" position, and the other in the "key exchange" position.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Chilkat recommends the following free tool for interactively examining the contents of your smart card // through the ScMinidriver interface: MGTEK Tool for Minidriver enabled Smart Cards // Let's first look at our smart card.. // Here's the view of our Gemalto (Thales) IDPrime MD T=0 smart card in the MGTEK tool: Chilkat.ScMinidriver scmd = new Chilkat.ScMinidriver(); // First we need to acquire a context to the smart card in the reader where it is inserted. // Reader names (smart card readers or USB tokens) can be discovered // via List Readers or Find Smart Cards string readerName = "Alcor Micro USB Smart Card Reader 0"; bool success = scmd.AcquireContext(readerName); if (success == false) { Debug.WriteLine(scmd.LastErrorText); return; } // If successful, the name of the currently inserted smart card is available: Debug.WriteLine("Card name: " + scmd.CardName); // We likely shouldn't need to authenticate with the smart card (use a PIN) to simply get a public key, // so we can skip the PIN authenticatin step.. // Let's get the key(s) present in Container #7. // In our case (shown in the image above), there is a private key in the "key exchange" position, but no key in the "signature" position. Chilkat.PublicKey pubkey_sig = new Chilkat.PublicKey(); Chilkat.PublicKey pubkey_kex = new Chilkat.PublicKey(); success = scmd.GetContainerKeys(7,pubkey_sig,pubkey_kex); if (success == false) { Debug.WriteLine(scmd.LastErrorText); return; } if (pubkey_sig.Empty == true) { Debug.WriteLine("No signature key is present."); } else { Debug.WriteLine("Signature key:"); Debug.WriteLine(pubkey_sig.GetPem(true)); } if (pubkey_kex.Empty == true) { Debug.WriteLine("No Key Exchange key is present."); } else { Debug.WriteLine("Key Exchange key:"); Debug.WriteLine(pubkey_kex.GetPem(true)); } scmd.DeleteContext(); Debug.WriteLine("Success."); // Here's the output of the above sample code: // Card name: IDPrime MD T=0 // No signature key is present. // Key Exchange key: // -----BEGIN RSA PUBLIC KEY----- // MIIBCgKCAQEAsXeRhM55P13FbpNcXAMR3olbw2Wa6keZIHu5YTZYUBTlYWId+pNi // wUz3zFIEo+0IfYR0H27ybIycQO+1IIzJofUFNMAL3tZps2OKPlsjuCPls6kXpXhv // /gvhux8LrCtp4PcKWqJ6QVOZKChc7WAx40qFWzHi57ueqRTv3x0kESqGg/VjsqyT // Evb55psJO2RsfhLT7+YVh3hImRM3RDaJdkTkPuOxeFyT6N7VXD09329sLuS3QkUb // E9zEKDnz9X3d8dEQdJhSI9ba5fxl8R7fu8pB67ElfzFml96X1jLFtzy1pzOT5Fc4 // ROcaqlYckVzdBq9sxezm6MYmDBjNAcibRwIDAQAB // -----END RSA PUBLIC KEY----- |
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