Go

Create JCEKS Containing Secret Keys

See more Java KeyStore (JKS) Examples

Demonstrates how to create a JCEKS keystore file containing symmetric secret keys (for AES, Blowfish, HMAC SHA25, ChaCha20, etc.)

This example requires Chilkat v9.5.0.66 or greater.

Go

    success := false

    // 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.

    jceks := chilkat.NewJavaKeyStore()

    // We'll need a pseudo-random number generator (PRNG) to generate symmetric keys.
    prng := chilkat.NewPrng()

    // Generate some keys..

    // 128-bit AES key (16 bytes)
    aesKey := prng.GenRandom(16,"base64")

    // 256-bit Blowfish key (32 bytes)
    blowfishKey := prng.GenRandom(32,"base64")

    // HMAC SHA256 key
    // (An HMAC key can be anything, and any length. We'll use the following string:
    hmacKey := "This is my HMAC key"

    // ChaCha20 256-bit
    chachaKey := prng.GenRandom(32,"base64")

    // Add each secret key to the JCEKS
    encoding := "base64"
    password := "secret"
    jceks.AddSecretKey(*aesKey,encoding,"AES","my aes key",password)
    jceks.AddSecretKey(*blowfishKey,encoding,"BLOWFISH","my blowfish key",password)
    // For HMAC, we're using the us-ascii bytes for the key..
    jceks.AddSecretKey(hmacKey,"ascii","HMAC_SHA256","my hmac key",password)
    jceks.AddSecretKey(*chachaKey,encoding,"CHACHA","my chacha20 key",password)

    filePassword := "password"
    // Write the JCEKs to a file.
    success = jceks.ToFile(filePassword,"qa_output/secretKeys.jceks")
    if success != true {
        fmt.Println(jceks.LastErrorText())
        jceks.DisposeJavaKeyStore()
        prng.DisposePrng()
        return
    }

    // We can also emit as a JWK Set..
    sbJson := chilkat.NewStringBuilder()
    success = jceks.ToJwkSet("secret",sbJson)
    if success != true {
        fmt.Println(jceks.LastErrorText())
        jceks.DisposeJavaKeyStore()
        prng.DisposePrng()
        sbJson.DisposeStringBuilder()
        return
    }

    // Emit the JSON in pretty-printed (indented) form:
    json := chilkat.NewJsonObject()
    json.LoadSb(sbJson)
    json.SetEmitCompact(false)
    fmt.Println(*json.Emit())

    // Output is:

    // { 
    //   "keys": [
    //     { 
    //       "kty": "oct",
    //       "alg": "AES",
    //       "k": "vHekQQB0Gc1NvppapUTW2g",
    //       "kid": "my aes key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "BLOWFISH",
    //       "k": "qHsdXaJsXicVCZbK8l8hJQpYOa0GkiO9gsRK9WLtht8",
    //       "kid": "my blowfish key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "HMAC_SHA256",
    //       "k": "VGhpcyBpcyBteSBITUFDIGtleQ",
    //       "kid": "my hmac key"
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "CHACHA",
    //       "k": "yNv832U43C9BcWvaQAH2_rG-GwfmpgT5JBRllWGQY1o",
    //       "kid": "my chacha20 key"
    //     }
    //   ]
    // }
    // 

    jceks.DisposeJavaKeyStore()
    prng.DisposePrng()
    sbJson.DisposeStringBuilder()
    json.DisposeJsonObject()