C#

Write PKCS1 or PKCS8 Public Key PEM

See more PEM Examples

Demonstrates how to write either PKCS1 or PKCS8 format PEM files. PKCS1 public keys have this PEM format:

-----BEGIN RSA PUBLIC KEY-----
BASE64 ENCODED DATA
-----END RSA PUBLIC KEY-----

PKCS8 public keys have this PEM format:

-----BEGIN PUBLIC KEY-----
BASE64 ENCODED DATA
-----END PUBLIC KEY-----

C#

bool success = false;

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

success = false;

Chilkat.Pem pem = new Chilkat.Pem();

// Load a public key from a PEM file.
// (Assume the PEM contains at least one public key..)
success = pem.LoadPemFile("/Users/chilkat/testData/pem/myPublicKey.pem");
if (success != true) {
    Debug.WriteLine(pem.LastErrorText);
    return;
}

int i;
int numPublicKeys = pem.NumPublicKeys;
if (numPublicKeys == 0) {
    Debug.WriteLine(("Error: Expected the PEM to contain public keys."));
    return;
}

// Get each public key as PEM, first in PKCS1 format, then in PKCS8.
for (i = 1; i <= numPublicKeys; i++) {

    // First output to PKCS1 PEM format:
    Debug.WriteLine("This is PKCS1 format:");
    pem.PublicKeyFormat = "pkcs1";
    Debug.WriteLine(pem.ToPem());

    // Now PKCS8 PEM format:
    Debug.WriteLine("This is PKCS8 format:");
    pem.PublicKeyFormat = "pkcs8";
    Debug.WriteLine(pem.ToPem());

}