Rust

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. Rust

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

let jks = chilkat::JavaKeyStore::new();

let old_jks_password = "existingPassword".to_string();
let new_jks_password = "newPassword".to_string();
let jks_path = "/someDir/keyStore.jks".to_string();

// Load the Java keystore from a file.
if jks.load_file(&old_jks_password, &jks_path).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

// If the JKS contains private key entries, then each
// must be re-keyed with the new password by calling ChangePassword.
let num_private_keys = jks.num_private_keys();

let mut i = 0;
while i < num_private_keys {

    if jks.change_password(i, &old_jks_password, &new_jks_password).is_err() {
        println!("{}", jks.last_error_text());
        return;
    }

    i = i + 1;
}

// Write the JKS using the new password for the JKS file's keyed digest.
if jks.to_file(&new_jks_password, &jks_path).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

println!("Updated the password for the Java keystore file.");