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Node.js

Generate an RSA Key and Save to Encrypted PEM

See more RSA Examples

Demonstrates how to generate an RSA key and save to an encrypted PEM file.

Chilkat Node.js Downloads

Node.js
NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var rsa = new chilkat.Rsa();

    //  Generate a 2048-bit key.
    var privKey = new chilkat.PrivateKey();
    success = rsa.GenKey(2048,privKey);
    if (success == false) {
        console.log(rsa.LastErrorText);
        return;
    }

    var password = "secret";
    //  Saving to a relative path (from the current working directory of the process).
    var path = "rsaKeys/myTestRsaPrivate.pem";
    //  Encrypt the PEM using 256-bit AES encryption.
    privKey.Pkcs8EncryptAlg = "aes256";
    success = privKey.SavePkcs8EncryptedPemFile(password,path);
    if (success == false) {
        console.log(privKey.LastErrorText);
        return;
    }

    //  image

    //  We can also save the public key.
    //  There is no need to encrypt public keys.
    var pubKey = new chilkat.PublicKey();
    privKey.ToPublicKey(pubKey);

    path = "rsaKeys/myTestRsaPublic.pem";
    //  Choose PKCS1 or PKCS8
    //  We'll choose PKCS8.
    var preferPkcs1 = false;
    success = pubKey.SavePemFile(preferPkcs1,path);
    if (success == false) {
        console.log(pubKey.LastErrorText);
        return;
    }

    //  image

    console.log("Success.");

}

chilkatExample();