Function aesGcmEncrypt

aesGcmEncrypt<T>(content, password, prefix?): Promise<T>
Encrypts plaintext using AES-GCM with supplied password, for decryption with aesGcmDecrypt(). (c) Chris Veness MIT Licence https://gist.github.com/chrisveness/43bcda93af9f646d083fad678071b90a Modified to work with Uint8Array and string content.
Type Parameters
- T extends string | Uint8Array
Parameters
- content: T
  Plaintext or Uint8 Buffer to be encrypted.
- password: string | Uint8Array
  Plaintext or Uint8 Buffer Password to use to encrypt content.
- Optional prefix: string | Uint8Array
  Optional prefix to prepend to the ciphertext.
Returns Promise<T>
Encrypted ciphertext. If content is a string, the ciphertext is a string. If content is a Uint8Array, the ciphertext is a new Uint8Array.
Example
```
const ciphertext = await aesGcmEncrypt('my secret text', 'pw');
  aesGcmEncrypt('my secret text', 'pw').then(function(ciphertext) { console.log(ciphertext); });
```