(JavaScript) RSASSA-PSS Algorithm with SHA256 Hashing

RSA encrypt a SHA256 hash with OAEP padding.

Note: This example requires Chilkat v11.0.0 or greater.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var privkey = new CkPrivateKey();

// Load the private key object from a PEM file.
// (To load from a PEM string, call LoadPem instead.)
success = privkey.LoadPemFile("somePath/myPrivateKey.pem");
if (success == false) {
    console.log(privkey.LastErrorText);
    return;
}

var rsa = new CkRsa();
// Use RSA-PSS by setting PkcsPadding = false
rsa.PkcsPadding = false;
// Use SHA256
rsa.OaepHash = "SHA-256";

rsa.UsePrivateKey(privkey);

// Generate a base64 signature.
rsa.EncodingMode = "base64";

var sigStr = rsa.SignStringENC("String to be signed","SHA-256");
if (rsa.LastMethodSuccess == false) {
    console.log(rsa.LastErrorText);
    return;
}

console.log("Signature: " + sigStr);