(C# UWP/WinRT) Generate RSA Public/Private Key Pair and Export to PEM

C# UWP/WinRT example code showing how to generate an RSA public/private key pair and export to PEM files.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

Chilkat.Rsa rsa = new Chilkat.Rsa();

// Generate a 1024-bit key.  Chilkat RSA supports
// key sizes ranging from 512 bits to 4096 bits.
bool success = rsa.GenerateKey(1024);
if (success != true) {
    Debug.WriteLine(rsa.LastErrorText);
    return;
}

// Keys are exported in XML format:
string publicKeyXml = rsa.ExportPublicKey();
Debug.WriteLine(publicKeyXml);

string privateKeyXml = rsa.ExportPrivateKey();
Debug.WriteLine(privateKeyXml);

// Save the private key in PEM format:
Chilkat.PrivateKey privKey = new Chilkat.PrivateKey();
success = privKey.LoadXml(privateKeyXml);
success = privKey.SaveRsaPemFile("privateKey.pem");

// Save the public key in PEM format:
Chilkat.PublicKey pubKey = new Chilkat.PublicKey();
success = pubKey.LoadXml(publicKeyXml);
success = pubKey.SaveOpenSslPemFile("publicKey.pem");