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(C#) DSA Generate KeyGenerates a DSA public/private key pair and saves to PEM and DER file formats (both encrypted and non-encrypted). An encrypted DSA PEM looks like this: -----BEGIN DSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: DES-EDE3-CBC,9DAFD5C4CD62A5D0 QwDdp66sB0qKXQli7FbVcKL/eo3wu7kGRlV2sI8XbkNa1RTLiwnwTWDB0dqyWRQ8 ... Bx0HVfxKiNgCbL6BQEnYD+GOmMcckuj9Uhgloe/YuXCIDJBGhjUt/li3hvR/PXeC V2xxNl1XKBE88njqi+UXt4vjGVNLpvXM -----END DSA PRIVATE KEY-----
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Dsa dsa = new Chilkat.Dsa(); // Call GenKey to generate a new DSA key. // The number of bits should be at least 1024 and a multiple // of 64. Typical values are either 1024 or 2048. // DSA key generation is compute intensive and may take // a short while to complete. bool success = dsa.GenKey(2048); if (success != true) { Debug.WriteLine(dsa.LastErrorText); return; } // Extract the private and public parts to PEM or DER format // and save to files... string pemStr; string xmlStr; // First for the public key... // The public key never needs to be encrypted. // Save the public key in PEM format: pemStr = dsa.ToPublicPem(); // This example will not check the return value of SaveText... success = dsa.SaveText(pemStr,"dsa_pub.pem"); // Save the public key in DER format: success = dsa.ToPublicDerFile("dsa_pub.der"); bool bPublicOnly = true; // Save to XML xmlStr = dsa.ToXml(bPublicOnly); success = dsa.SaveText(xmlStr,"dsa_pub.xml"); // ------------------------------------ // Now for the private key.... // ------------------------------------ // Unencrypted PEM: pemStr = dsa.ToPem(); success = dsa.SaveText(pemStr,"dsa_priv.pem"); // Encrypted PEM: pemStr = dsa.ToEncryptedPem("myPassword"); success = dsa.SaveText(pemStr,"dsa_privEncrypted.pem"); // DER: success = dsa.ToDerFile("dsa_priv.der"); // XML: bPublicOnly = false; xmlStr = dsa.ToXml(bPublicOnly); success = dsa.SaveText(xmlStr,"dsa_priv.xml"); Debug.WriteLine("Finished!"); |
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