Security of COFB against chosen ciphertext attacks

• Main Author: Khairallah, Mustafa
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2022
• Subjects: Science::Mathematics; Block Cipher; Authenticated Encryption
• Online Access: https://hdl.handle.net/10356/160509
• Institution: Nanyang Technological University

COFB is a lightweight Authenticated Encryption with Associated Data (AEAD) mode based on block ciphers. It was proposed in CHES 2017 and is the basis for GIFT-COFB, a finalist in the NIST lightweight standardization project. It comes with provable security results that guarantee its security up to t...