// crypto.wren

foreign class Crypto {

  // Generates a random RFC-4122 UUID (version 4).
  foreign static uuid4()

  // Generates a UUID-v5 in the DNS namespace.
  foreign static uuid5(data)

  // Encrypts plaintext with a named key. Returns ByteBuffer.
  foreign static encrypt(plaintext, name)

  // Decrypts a ByteBuffer produced by encrypt(). Returns String or null.
  foreign static decrypt(blob, name)
}