# Module Nettle.BlockCipher()->CTR

Inheritance graph

Description

  Implementation of Counter Mode (CTR).

  This cipher mode works like a stream cipher with a block size >= 1. This means that the same key and initialization vector (aka counter) should never be reused, since a simple xor would reveal information about the plain text. It also means that it should never be used without a suiteable Message Authentication Code (MAC).

See also

  CBC, GCM, Buffer

Inherit Cipher

  inherit __builtin.Nettle.Cipher : Cipher