Ascon v1.2: Lightweight Authenticated Encryption and Hashing

LAC: A Lightweight Authenticated Encryption Cipher

ALE: AES-Based Lightweight Authenticated Encryption

In this paper, we propose a new Authenticated Lightweight Encryption algorithm coined ALE. The basic operation of ALE is the AES round transformation and the AES-128 key schedule. ALE is an online single-pass authenticated encryption algorithm that supports optional associated data. Its security relies on using nonces. We provide an optimized low-area implementation of ALE in ASIC hardware and ...

The Hummingbird-2 Lightweight Authenticated Encryption Algorithm

Hummingbird-2 is an encryption algorithm with a 128-bit secret key and a 64-bit initialization vector. Hummingbird-2 optionally produces an authentication tag for each message processed. Like it’s predecessor Hummingbird-1, Hummingbird-2 has been targeted for low-end microcontrollers and for hardware implementation in lightweight devices such as RFID tags and wireless sensors. Compared to the p...

JAMBU Lightweight Authenticated Encryption Mode and AES-JAMBU

In this paper, we propose a lightweight authenticated encryption mode JAMBU. It only needs n-bit extra register for a block cipher with 2n-bit block size. It achieves n-bit authentication security when 2 bits are processed under a single key. When nonce (IV) is reused, the encryption security is similar to that of the CFB mode while the message authentication maintains strong security. We insta...

Single-Path Authenticated-Encryption Scheme Based on Universal Hashing

An authenticated-encryption scheme is frequently used to provide a communication both with confidentiality and integrity. For stream ciphers, i.e., an encryption scheme using a cryptographic pseudorandom-number generator, this objective can be achieved by the simple combination of encryption and MAC generation. This naive approach, however, introduces the following drawbacks; the implementation...