Chilkat Examples

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Node.js Examples

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(Node.js) Create JCEKS Containing Secret Keys

Demonstrates how to create a JCEKS keystore file containing symmetric secret keys (for AES, Blowfish, HMAC SHA25, ChaCha20, etc.)

This example requires Chilkat v9.5.0.66 or greater.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js

Chilkat npm packages for Electron

on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node11-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node11-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node11-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node11-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node11-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node11-macosx');
}

function chilkatExample() {

    // IMPORTANT: This example requires Chilkat v9.5.0.66 or greater.

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

    var jceks = new chilkat.JavaKeyStore();

    // We'll need a pseudo-random number generator (PRNG) to generate symmetric keys.
    var prng = new chilkat.Prng();

    // Generate some keys..

    // 128-bit AES key (16 bytes)
    var aesKey = prng.GenRandom(16,"base64");

    // 256-bit Blowfish key (32 bytes)
    var blowfishKey = prng.GenRandom(32,"base64");

    // HMAC SHA256 key
    // (An HMAC key can be anything, and any length. We'll use the following string:
    var hmacKey = "This is my HMAC key";

    // ChaCha20 256-bit
    var chachaKey = prng.GenRandom(32,"base64");

    // Add each secret key to the JCEKS
    var encoding = "base64";
    var password = "secret";
    jceks.AddSecretKey(aesKey,encoding,"AES","my aes key",password);
    jceks.AddSecretKey(blowfishKey,encoding,"BLOWFISH","my blowfish key",password);
    // For HMAC, we're using the us-ascii bytes for the key..
    jceks.AddSecretKey(hmacKey,"ascii","HMAC_SHA256","my hmac key",password);
    jceks.AddSecretKey(chachaKey,encoding,"CHACHA","my chacha20 key",password);

    var filePassword = "password";
    // Write the JCEKs to a file.
    var success = jceks.ToFile(filePassword,"qa_output/secretKeys.jceks");
    if (success !== true) {
        console.log(jceks.LastErrorText);
        return;
    }

    // We can also emit as a JWK Set..
    var sbJson = new chilkat.StringBuilder();
    success = jceks.ToJwkSet("secret",sbJson);
    if (success !== true) {
        console.log(jceks.LastErrorText);
        return;
    }

    // Emit the JSON in pretty-printed (indented) form:
    var json = new chilkat.JsonObject();
    json.LoadSb(sbJson);
    json.EmitCompact = false;
    console.log(json.Emit());

    // Output is:

    // { 
    //   "keys": [
    //     { 
    //       "kty": "oct",
    //       "alg": "AES",
    //       "k": "vHekQQB0Gc1NvppapUTW2g",
    //       "kid": "my aes key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "BLOWFISH",
    //       "k": "qHsdXaJsXicVCZbK8l8hJQpYOa0GkiO9gsRK9WLtht8",
    //       "kid": "my blowfish key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "HMAC_SHA256",
    //       "k": "VGhpcyBpcyBteSBITUFDIGtleQ",
    //       "kid": "my hmac key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "CHACHA",
    //       "k": "yNv832U43C9BcWvaQAH2_rG-GwfmpgT5JBRllWGQY1o",
    //       "kid": "my chacha20 key"
    //     }
    //   ]
    // }
    // 

}

chilkatExample();

 

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