(Objective-C) Read JCEKS Containing Secret Keys

Demonstrates how to read a JCEKS keystore file containing symmetric secret keys (for AES, Blowfish, HMAC SHA25, ChaCha, etc.)

This example uses the jceks sample file that you may download from Sample JCEKS with Secret Keys

The file password is "filePassword". The password for each secret key contained in the JCEKS is "secret".

This example requires Chilkat v9.5.0.66 or greater.

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#import <CkoJavaKeyStore.h>
#import <NSString.h>

// IMPORTANT: This example requires Chilkat v9.5.0.66 or greater.

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

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

BOOL success = [jceks LoadFile: @"filePassword" path: @"qa_data/jks/secretKeys_filePassword.jceks"];
if (success != YES) {
    NSLog(@"%@",jceks.LastErrorText);
    return;
}

NSString *keyPassword = @"secret";

// Iterate over each secret key and get the key bytes and aliases..
int i = 0;
int numSecretKeys = [jceks.NumSecretKeys intValue];
while (i < numSecretKeys) {

    NSLog(@"%@%d",@"---- Secret Key ",i);
    NSLog(@"%@%@",@"Alias: ",[jceks GetSecretKeyAlias: [NSNumber numberWithInt: i]]);
    // Get the secret key bytes in a desired encoding (base64, hex, base64url, etc.)
    NSLog(@"%@%@",@"Key Bytes (hex): ",[jceks GetSecretKey: keyPassword index: [NSNumber numberWithInt: i] encoding: @"hex"]);
    NSLog(@"%@%@",@"Key Bytes (base64): ",[jceks GetSecretKey: keyPassword index: [NSNumber numberWithInt: i] encoding: @"base64"]);

    i = i + 1;
}

// The output:

// ---- Secret Key 0
// Alias: aes_key
// Key Bytes (hex): CB3632FD12FF3256E0048C100DDE8DEF
// Key Bytes (base64): yzYy/RL/MlbgBIwQDd6N7w==
// ---- Secret Key 1
// Alias: chacha_key
// Key Bytes (hex): B37C73871C7B8F8D488DDE2F1A78CF51B6D74FFAF0E9B338B9609510A4688136
// Key Bytes (base64): s3xzhxx7j41Ijd4vGnjPUbbXT/rw6bM4uWCVEKRogTY=
// ---- Secret Key 2
// Alias: hmac_sha256_key
// Key Bytes (hex): 3C644B53F904A3BF161D3EAD1364E52EAE6C6EC8C61133B974A2484B894539C0
// Key Bytes (base64): PGRLU/kEo78WHT6tE2TlLq5sbsjGETO5dKJIS4lFOcA=
// ---- Secret Key 3
// Alias: blowfish_key
// Key Bytes (hex): FFE0574DE04B50F1E2FE79B4160B3B2183ACFF41721C46BFF9764CF24CA40E3C
// Key Bytes (base64): /+BXTeBLUPHi/nm0Fgs7IYOs/0FyHEa/+XZM8kykDjw=