Rust

Add Private Key to Java Keystore

See more Java KeyStore (JKS) Examples

Adds a private key to an existing Java keystore. Rust

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

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

let jks_password = "myJksPassword".to_string();
let jks_path = "/someDir/keyStore.jks".to_string();

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

// A JKS private key entry consists of both the private key,
// it's associated certificate (which contains the matching public key
// within the X.509 of the certificate), and the certificates in the
// chain of authentication to the root.
// 
// Therefore, to add a private key entry to a JKS requires
// a Chilkat certificate object that has a private key and which also
// has the certificate chain (up to the root) available.

// There are many ways to get a Chilkat certificate object
// that contains (within it) the private key and the certificate chain
// This example will show two possibilities:
// (1) Where the cert and issuing root are provided in PEM format in .crt files,
// and the private key is also provided in unencrypted PEM format (.key file).
// (2) Where the cert, private key, and issuing root are provided in a single PFX.

// First for the .crt / .key files:
let cert = chilkat::Cert::new();

// Chilkat will automatically determine the format of the cert file and load it correctly.
if cert.load_from_file("/mycerts/alice.crt").is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Certificates required for building the chain of authentication can be
// added to an XML certificate vault object, and then provided as
// a source for obtaining certs when building the chain.
let cert_vault = chilkat::XmlCertVault::new();
if cert_vault.add_cert_file("/mycerts/ca.crt").is_err() {
    println!("{}", cert_vault.last_error_text());
    return;
}

if cert.use_cert_vault(&cert_vault).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Now provide the associated private key to the certificate object.
// The Chilkat private key class provides methods for loading from many formats (both
// encrypted and unencrypted).
let priv_key = chilkat::PrivateKey::new();
if priv_key.load_pem_file("/mycerts/alice.key").is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// Provide the certificate object with the private key:
if cert.set_private_key(&priv_key).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Our certificate object now contains all that we need to add it as a private key entry
// to the Java keystore:
let mut alias = "alice".to_string();
if jks.add_private_key(&cert, &alias, &jks_password).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

// Write the updated JKS, which contains the new private key entry w/ certificate chain.
if jks.to_file(&jks_password, &jks_path).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

println!("Added new private key entry (from .crt and .key files) to the JKS!");

// Now let's add a new private key entry from a PFX that contains a single
// private key with associated cert and cert chain.
let pfx = chilkat::Pfx::new();

if pfx.load_pfx_file("/myPfxFiles/my.pfx", "pfxPassword").is_err() {
    println!("{}", pfx.last_error_text());
    return;
}

// This is easy -- simply add the PFX to the JKS
alias = "bob".to_string();
if jks.add_pfx(&pfx, &alias, &jks_password).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

// Write the updated JKS, which contains the new private key entry w/ certificate chain
// that came from the PFX.
if jks.to_file(&jks_password, &jks_path).is_err() {
    println!("{}", jks.last_error_text());
    return;
}

println!("Added new private key entry (from PFX) to the JKS!");