I want to extract private key from .pfx file. The key extracting from this code snippet is in format PKCS#1, but I want in format PKCS#8.

            KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509");
            char[] password = "password".toCharArray();
            KeyStore keyStore = KeyStore.getInstance("PKCS12");
            getPrivateKeyFromPFX(password);
            InputStream certificateStream = getResources().openRawResource(R.raw.certificate);
            keyStore.load(certificateStream, password);
            kmf.init(keyStore,password);
            Enumeration<String> aliases = keyStore.aliases();
            while (aliases.hasMoreElements()) {
                String alias = aliases.nextElement();

                if (keyStore.isKeyEntry(alias)) {
                    PrivateKey keyEntry = (PrivateKey) keyStore.getKey(alias, password);

                    byte[] bytes = keyEntry.getEncoded();
                    String somthing =(keyEntry.getFormat());
                    // Encode the private key to Base64
                    String base64PrivateKey = Base64.encodeToString(bytes, Base64.DEFAULT) ;

                    Log.d("PFXExtractor", "Private key extracted and encoded in Base64:n" + base64PrivateKey);
                }
           }

I tried using this snippet to cenvert but still not luck

    PKCS8EncodedKeySpec pkcs8EncodedKeySpec = new PKCS8EncodedKeySpec(privateKey.getEncoded());
    KeyFactory kf = KeyFactory.getInstance("RSA");
    PrivateKey privateKey1 = kf.generatePrivate(pkcs8EncodedKeySpec);

I extracting this key from android and pass to flutter code using methodChannel where

    RSAKeyParser().parse("-----BEGIN RSA PRIVATE KEY-----n$keyStrn-----END RSA PRIVATE KEY-----") as RSAPrivateKey;

this code use that key for decryption