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!7

!include once #1030462 // BouncyCastle

cprint {
  KeyPair generateKeyPair() ctex {
    ECNamedCurveParameterSpec parameterSpec = ECNamedCurveTable.getParameterSpec(nl.martijndwars.webpush.Utils.CURVE);

    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(nl.martijndwars.webpush.Utils.ALGORITHM,
      org.bouncycastle.jce.provider.BouncyCastleProvider.PROVIDER_NAME);
    keyPairGenerator.initialize(parameterSpec);

    ret keyPairGenerator.generateKeyPair();
  }
  
  start-thread {
    Provider provider = Security.getProvider(org.bouncycastle.jce.provider.BouncyCastleProvider.PROVIDER_NAME);
    print("Provider:" + provider);
    if (provider == null) {
      Security.addProvider(new BouncyCastleProvider);
      provider = Security.getProvider(org.bouncycastle.jce.provider.BouncyCastleProvider.PROVIDER_NAME);
      print("Provider:" + provider);
    }
    
    KeyPair keyPair = generateKeyPair();
    ECPublicKey publicKey = cast keyPair.getPublic();
    ECPrivateKey privateKey = cast keyPair.getPrivate();

    byte[] encodedPublicKey = nl.martijndwars.webpush.Utils.encode(publicKey);
    byte[] encodedPrivateKey = nl.martijndwars.webpush.Utils.encode(privateKey);
    
    print("Public key: " + base64encode(encodedPublicKey));
    print("Private key: " + shorten(16, base64encode(encodedPrivateKey)));
  }
}