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- Title
POST-QUANTUM CRYPTOGRAPHY FOR HEALTHCARE: A NUMBER THEORY BASED TWO-FACTOR MUTUAL AUTHENTICATION AND KEY EXCHANGE PROTOCOL OVER LATTICES FOR TMIS.
- Authors
Djimnaibeye, Sidoine; Ngom, Aminata; Sow, Djiby
- Abstract
The telecare medical information system (TMIS) allows patients to access health services from their homes. It is therefore necessary to preserve privacy of the patient and to secure the communications between the patient/user and the gateway/server for TMIS (Gw, briefly). We propose a new ring learning with error (RLWE) based on twofactor authentication and key exchange protocol, post-quantum secure, for healthcare platform by using a similar protocol of Ding et al. at Cryptographers' Track at the RSA Conference in 2017 [32]. Our protocol involves four phases: user registration phase, login phase, mutual authentication and key agreement phase, and user's password change phase. Gw has a long-term public key (ps) and a private key (xs). The user has a password pwd. The user's personal device/smartphone (PD, briefly) has a long-term secret key. xu This secret key xu is encrypted by pwd and stored on PD. The PD and the Gw share a long-term password S. This shared password S is calculated by Gw from its secret xs and the hash of the user's id (H1(..., id, xu)). Gw sends S to PD through a secure channel. At user's side, S is encrypted (stored on PD) with pwd and the PD's long-term secret key. xu Note that S and id are not stored on Gw. For privacy, all the information required for user's authentication are securely stored on PD and no information of the user is stored on Gw. pwd can be frequently changed offline (inside the PD).
- Subjects
QUANTUM cryptography; NUMBER theory; MULTI-factor authentication; CRYPTOGRAPHY; MEDICAL care; INFORMATION storage &; retrieval systems; HAMMING distance
- Publication
Advances & Applications in Discrete Mathematics, 2024, Vol 41, Issue 1, p1
- ISSN
0974-1658
- Publication type
Article
- DOI
10.17654/0974165824001