Node.js

RSA Sign Using Private Key from .pfx/.p12 to Base64 Signature

See more RSA Examples

Demonstrates how to RSA sign something using a private key loaded from a .pfx/.p12. The RSA signature is returned in Base64 encoded format. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var rsa = new chilkat.Rsa();

    // Load the .pfx/.p12
    var pfx = new chilkat.Pfx();
    success = pfx.LoadPfxFile("qa_data/pfx/myKey.p12","myPassword");
    if (success == false) {
        console.log(pfx.LastErrorText);
        return;
    }

    // Get the default private key.

    var privKey = new chilkat.PrivateKey();
    success = pfx.PrivateKeyAt(0,privKey);
    if (success == false) {
        console.log(pfx.LastErrorText);
        return;
    }

    // Import the private key into the RSA component:
    success = rsa.UsePrivateKey(privKey);
    if (success == false) {
        console.log(rsa.LastErrorText);
        return;
    }

    // Get the signature in base64
    rsa.EncodingMode = "base64";

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

    // Sign the string using the sha256 hash algorithm.
    // Other valid choices are "sha384", "sha512", "sha-1", "md2" and "md5".
    var base64Sig = rsa.SignStringENC(strData,"sha256");

    console.log(base64Sig);

    console.log("Success!");

}

chilkatExample();