C#

Base64url Encoding

See more Encryption Examples

Base64url encoding is identical to base64 encoding except it uses non-reserved URL characters (e.g. '–' is used instead of '+', and '_' is used instead of '/') and it omits the padding characters. C#

bool success = false;

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

Chilkat.PrivateKey pkey = new Chilkat.PrivateKey();
Chilkat.Rsa rsa = new Chilkat.Rsa();
rsa.GenKey(1024,pkey);
rsa.UsePrivateKey(pkey);

string strData = "This is the string to be signed.";

// Get the signature in base64url
rsa.EncodingMode = "base64url";
string strSig = rsa.SignStringENC(strData,"sha256");

Debug.WriteLine(strSig);