What is the key size and IV value for the lightweight symmetric stream cipher Enocoro?

The key size and IV (Initialization Vector) value for the lightweight symmetric stream cipher Enocoro is indeed a 128-bit key size with a 64-bit IV. This configuration is significant for a few reasons.

The 128-bit key size allows for a substantial number of possible keys, providing a robust level of security against brute-force attacks. In encryption, a longer key size generally implies a greater difficulty for unauthorized parties to replicate the encryption process without the key. A 64-bit IV is used to ensure that even if the same plaintext is encrypted multiple times under the same key, the outputs will differ, thus enhancing security through randomness in the output.

Using a 64-bit IV fits well within established practices for lightweight encryption solutions, where constraints on processing resources and performance can be critical. This cipher is designed for environments where efficiency is paramount, and the chosen sizes reflect a balance between security needs and operational feasibility.