Paper 2025/314
Towards Optimally Secure Deterministic Authenticated Encryption Schemes
Abstract
The public comments received for the review process for NIST (SP) 800-38A pointed out two important issues that most companies face: (1) the limited security that AES can provide due to its 128-bit block size and (2) the problem of nonce-misuse in practice. In this paper, we provide an alternative solution to these problems by introducing two optimally secure deterministic authenticated encryption (DAE) schemes, denoted as DENC1 and DENC2 respectively. We show that our proposed constructions improve the state-of-the-art in terms of security and efficiency. Specifically, DENC1 achieves a robust security level of
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- A major revision of an IACR publication in EUROCRYPT 2025
- Keywords
- IV-based encryptionDeterministic AESIVGCM-SIV
- Contact author(s)
-
yulong chen @ esat kuleuven be
avirocks dutta13 @ gmail com
letterstoashwin @ gmail com
mridul nandi @ gmail com - History
- 2025-02-21: approved
- 2025-02-21: received
- See all versions
- Short URL
- https://ia.cr/2025/314
- License
-
CC BY-SA
BibTeX
@misc{cryptoeprint:2025/314, author = {Yu Long Chen and Avijit Dutta and Ashwin Jha and Mridul Nandi}, title = {Towards Optimally Secure Deterministic Authenticated Encryption Schemes}, howpublished = {Cryptology {ePrint} Archive, Paper 2025/314}, year = {2025}, url = {https://eprint.iacr.org/2025/314} }