Chilkat Examples

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Node.js Examples


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(Node.js) PBKDF1 - Derive Key from Password

Demonstrates how to derive a symmetric encryption key from a password using PBKDF1. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

It also matches the output produced by the .NET Framework using this C# code:

            byte[] salt = new byte[] { 0x78, 0x57, 0x8E, 0x5A, 0x5D, 0x63, 0xCB, 0x06 };
            PasswordDeriveBytes cdk = new PasswordDeriveBytes("password", salt);

            cdk.IterationCount = 1000;
            cdk.HashName = "SHA1";

            // generate a 16-byte key
            byte[] key = cdk.GetBytes(16);

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') {  
    var chilkat = require('chilkat_node10_win32'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('chilkat_node10_arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('chilkat_node10_linux32');
    } else {
        var chilkat = require('chilkat_node10_linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('chilkat_node10_macosx');
}

function chilkatExample() {

    var crypt = new chilkat.Crypt2();

    var success = crypt.UnlockComponent("Anything for 30-day trial");
    if (success !== true) {
        console.log(crypt.LastErrorText);
        return;
    }

    var hexKey;
    //  http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

    var pw = "password";
    var pwCharset = "ansi";
    //  Hash algorithms may be: sha1, md2, md5, etc.
    var hashAlg = "sha1";
    //  The salt should be 8 bytes:
    var saltHex = "78578E5A5D63CB06";
    var iterationCount = 1000;
    //  Derive a 128-bit key from the password.
    var outputBitLen = 128;

    //  The derived key is returned as a hex or base64 encoded string.
    //  (Note: The salt argument must be a string that also uses
    //  the same encoding.)
    var enc = "hex";

    hexKey = crypt.Pbkdf1(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc);

    console.log(hexKey);

    //  The output should have this value:
    //  DC19847E05C64D2FAF10EBFB4A3D2A20

}

chilkatExample();

 

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