(Objective-C) Add Private Key to Java Keystore

Adds a private key to an existing Java keystore.

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#import <CkoJavaKeyStore.h>
#import <NSString.h>
#import <CkoCert.h>
#import <CkoXmlCertVault.h>
#import <CkoPrivateKey.h>
#import <CkoPfx.h>

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

CkoJavaKeyStore *jks = [[CkoJavaKeyStore alloc] init];

NSString *jksPassword = @"myJksPassword";
NSString *jksPath = @"/someDir/keyStore.jks";

// Load the Java keystore from a file.
BOOL success = [jks LoadFile: jksPassword path: jksPath];
if (success != YES) {
    NSLog(@"%@",jks.LastErrorText);
    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:
CkoCert *cert = [[CkoCert alloc] init];

// Chilkat will automatically determine the format of the cert file and load it correctly.
success = [cert LoadFromFile: @"/mycerts/alice.crt"];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    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.
CkoXmlCertVault *certVault = [[CkoXmlCertVault alloc] init];
success = [certVault AddCertFile: @"/mycerts/ca.crt"];
if (success != YES) {
    NSLog(@"%@",certVault.LastErrorText);
    return;
}

success = [cert UseCertVault: certVault];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    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).
CkoPrivateKey *privKey = [[CkoPrivateKey alloc] init];
success = [privKey LoadPemFile: @"/mycerts/alice.key"];
if (success != YES) {
    NSLog(@"%@",privKey.LastErrorText);
    return;
}

// Provide the certificate object with the private key:
success = [cert SetPrivateKey: privKey];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

// Our certificate object now contains all that we need to add it as a private key entry
// to the Java keystore:
NSString *alias = @"alice";
success = [jks AddPrivateKey: cert alias: alias password: jksPassword];
if (success != YES) {
    NSLog(@"%@",jks.LastErrorText);
    return;
}

// Write the updated JKS, which contains the new private key entry w/ certificate chain.
success = [jks ToFile: jksPassword path: jksPath];
if (success != YES) {
    NSLog(@"%@",jks.LastErrorText);
    return;
}

NSLog(@"%@",@"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.
CkoPfx *pfx = [[CkoPfx alloc] init];

success = [pfx LoadPfxFile: @"/myPfxFiles/my.pfx" password: @"pfxPassword"];
if (success != YES) {
    NSLog(@"%@",pfx.LastErrorText);
    return;
}

// This is easy -- simply add the PFX to the JKS
alias = @"bob";
success = [jks AddPfx: pfx alias: alias password: jksPassword];
if (success != YES) {
    NSLog(@"%@",jks.LastErrorText);
    return;
}

// Write the updated JKS, which contains the new private key entry w/ certificate chain
// that came from the PFX.
success = [jks ToFile: jksPassword path: jksPath];
if (success != YES) {
    NSLog(@"%@",jks.LastErrorText);
    return;
}

NSLog(@"%@",@"Added new private key entry (from PFX) to the JKS!");