JavaScript

Load RSA Public Key from Hex Modulus and Exponent

Load an RSA public key from a hex modulus and exponent.

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.

JavaScript

var success = false;

// Load a 128-byte (1024-bit) modulus + exponent into a Chilkat public key object..
var modulus = "BF5F4AF9A018B5F324A0C10448C0D3248D9BE78967FDC551A27876AC5789ADCBA8245D3D942AE3799563D895DA801E765D225A54FA15DAB2C4731DD817DCF94A9AD62197074C2349442093A206234BF3747F0E88AA6F538355684CC1FB26FCE029C9050A1DAF9F507C2BABF6EFC9FB16320C8036721BE0279FBB76122C41E429";

var exponent = "00000003";

// We'll need to re-encode from hex to base64..
var bdModulus = new CkBinData();
bdModulus.AppendEncoded(modulus,"hex");
var bdExponent = new CkBinData();
bdExponent.AppendEncoded(exponent,"hex");

var xml = new CkXml();
xml.Tag = "RsaKeyValue";
xml.NewChild2("Modulus",bdModulus.GetEncoded("base64"));
xml.NewChild2("Exponent",bdExponent.GetEncoded("base64"));

// Now load into the pubkey object..
var pubkey = new CkPublicKey();
success = pubkey.LoadFromString(xml.GetXml());
if (success == false) {
    console.log(pubkey.LastErrorText);
    return;
}

console.log("Success.");