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Node.js

Change Password for Java KeyStore File

See more Java KeyStore (JKS) Examples

Demonstrates how to load a Java keystore, change the password, and save using the new password. If the Java keystore contains only trusted root certificates, then it's simply a matter of loading the JKS with the existing password, and then saving with a new password. If the JKS contains private key entries, then each private key entry must be re-keyed using the new password by calling the ChangePassword method.

Chilkat Node.js Downloads

Node.js
NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var jks = new chilkat.JavaKeyStore();

    var oldJksPassword = "existingPassword";
    var newJksPassword = "newPassword";
    var jksPath = "/someDir/keyStore.jks";

    // Load the Java keystore from a file.
    success = jks.LoadFile(oldJksPassword,jksPath);
    if (success !== true) {
        console.log(jks.LastErrorText);
        return;
    }

    // If the JKS contains private key entries, then each
    // must be re-keyed with the new password by calling ChangePassword.
    var numPrivateKeys = jks.NumPrivateKeys;

    var i = 0;
    while (i < numPrivateKeys) {

        success = jks.ChangePassword(i,oldJksPassword,newJksPassword);
        if (success !== true) {
            console.log(jks.LastErrorText);
            return;
        }

        i = i+1;
    }

    // Write the JKS using the new password for the JKS file's keyed digest.
    success = jks.ToFile(newJksPassword,jksPath);
    if (success !== true) {
        console.log(jks.LastErrorText);
        return;
    }

    console.log("Updated the password for the Java keystore file.");

}

chilkatExample();