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C#

Generate an ECDSA Key

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Demonstrates how to generate an ECDSA key.

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C#
bool success = false;

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

//  Create a Fortuna PRNG and seed it with system entropy.
//  This will be our source of random data for generating the ECC private key.
Chilkat.Prng fortuna = new Chilkat.Prng();
string entropy = fortuna.GetEntropy(32,"base64");
success = fortuna.AddEntropy(entropy,"base64");

Chilkat.Ecc ecc = new Chilkat.Ecc();

//  Generate a random ECC private key on the secp256r1 curve.
//  Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1.

Chilkat.PrivateKey privKey = new Chilkat.PrivateKey();
success = ecc.GenKey("secp256r1",fortuna,privKey);
if (success == false) {
    Debug.WriteLine(ecc.LastErrorText);
    return;
}

Debug.WriteLine(privKey.GetXml());

//  Save the private key to PKCS8 encrypted PEM
//  (The private key can be saved in a variety of different formats. See the online reference documentation.)
success = privKey.SavePkcs8EncryptedPemFile("pemPassword","myPemFiles/eccKey123.pem");
if (success != true) {
    Debug.WriteLine(privKey.LastErrorText);
}

Debug.WriteLine("finished.");