Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST SP 800-232 (Initial Public Draft)

Ascon-Based Lightweight Cryptography Standards for Constrained Devices: Authenticated Encryption, Hash, and Extendable Output Functions

Date Published: November 8, 2024
Comments Due: February 7, 2025
Email Comments to: sp800-232-comments@list.nist.gov

Author(s)

Meltem Sönmez Turan (NIST), Kerry McKay (NIST), Donghoon Chang (Strativia), Jinkeon Kang (NIST), John Kelsey (NIST)

Announcement

This draft standard introduces a new Ascon-based family of symmetric-key cryptographic primitives that provides robust security, efficiency, and flexibility. With its compact state and range of cryptographic functions, it is ideal for resource-constrained environments, such as Internet of Things (IoT) devices, embedded systems, and low-power sensors. This standard includes multiple algorithms to meet a wide range of symmetric cryptographic needs, including the Authenticated Encryption with Associated Data (AEAD) scheme Ascon-AEAD128, the hash function Ascon-Hash256, and the Extendable Output Functions (XOFs) Ascon-XOF128 and Ascon-CXOF128.

Abstract

Keywords

ASCON; authenticated encryption; constrained devices; extendable output function (XOF); hash function; lightweight cryptography; permutation-based cryptography; standardization
Control Families

None selected

Documentation

Publication:
https://doi.org/10.6028/NIST.SP.800-232.ipd
Download URL

Supplemental Material:
None available

Document History:
11/08/24: SP 800-232 (Draft)

Topics

Security and Privacy

lightweight cryptography