Transform key and iv bytes in base64/Hex for another languages decript

[silvioangels]

Guys,
I need to know how can i transform key and iv bytes in base64/Hex for another languages decript. All the tests i did it to transform not work in decript, only works here in js. Someone know how to do it?

[webdevelopland]

Like this for example:

function uint8ArrayToBase64(binary: Uint8Array): string {
  return btoa(new Uint8Array(binary).reduce((data, byte) => {
    return data + String.fromCharCode(byte);
  }, ''));
}