(Mono C#) Create PKCS1 RSA Signature with PEM Private Key
Demonstrates how to load a private key from a PEM file and create a PKCS1 RSA digital signature.
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
Chilkat.PrivateKey pkey = new Chilkat.PrivateKey();
// Load the private key from an RSA PEM file:
bool success = pkey.LoadPemFile("pvkey2_rsa.pem");
string pkeyXml;
// Get the private key in XML format:
pkeyXml = pkey.GetXml();
Chilkat.Rsa rsa = new Chilkat.Rsa();
// Import the private key into the RSA object:
success = rsa.ImportPrivateKey(pkeyXml);
if (success != true) {
Debug.WriteLine(rsa.LastErrorText);
return;
}
// Get the signature as hex.
rsa.EncodingMode = "hex";
string strData = "This is the string to be signed.";
// Sign the string using the sha-1 hash algorithm.
// Other valid choices are "md2", "md5", "sha256",
// "sha384", and "sha512".
string hexSig = rsa.SignStringENC(strData,"sha-1");
Debug.WriteLine(hexSig);
Debug.WriteLine("Success!");
|