Self-synchronized Encryption for Physical Layer in 10Gbps Optical Links

Perez, A. (Universidad de Zaragoza) ; Garcia-Bosque, M. (Universidad de Zaragoza) ; Sanchez-Azqueta, C. (Universidad de Zaragoza) ; Celma, S. (Universidad de Zaragoza)

Resumen: In this work a new self-synchronized encryption method for 10 Gigabit optical links is proposed and developed. Necessary modifications to introduce this kind of encryption in physical layers based on 64b/66b encoding, such as 10GBase-R, have been considered. The proposed scheme encrypts directly the 64b/66b blocks by using a symmetric stream cipher based on an FPE (Format Preserving Encryption) block cipher operating in PSCFB (Pipelined Statistical Cipher Feedback) mode. One of the main novelties in this paper is the security analysis done for this mode. For the first time, an expression for the IND-CPA (Indistinguishability under Chosen-Plaintext Attack) advantage of any adversary over this scheme has been derived. Moreover, it has been concluded that this mode can be considered secure in the same way of traditional modes are. In addition, the overall system has been simulated and implemented in an FPGA (Field Programmable Gate Array). An encrypted optical link has been tested with Ethernet data frames, concluding that it is possible to cipher traffic at this level, getting maximum throughput and hiding traffic pattern from passive eavesdroppers.

Idioma: Inglés

DOI: 10.1109/TC.2018.2890259

Año: 2019

Publicado en: IEEE TRANSACTIONS ON COMPUTERS 68, 6 (2019), 899-911
ISSN: 0018-9340

Factor impacto JCR: 2.711 (2019)

Categ. JCR: ENGINEERING, ELECTRICAL & ELECTRONIC rank: 111 / 266 = 0.417 (2019) - Q2 - T2
Categ. JCR: COMPUTER SCIENCE, HARDWARE & ARCHITECTURE rank: 19 / 53 = 0.358 (2019) - Q2 - T2

Factor impacto SCIMAGO: 0.943 - Computational Theory and Mathematics (Q1) - Theoretical Computer Science (Q1) - Software (Q1) - Hardware and Architecture (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU14-03523
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2014-52840-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2017-85867-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Área (Departamento): Proy. investigación JBA (Dpto. Ingeniería Electrón.Com.)
Área (Departamento): Área Electrónica (Dpto. Ingeniería Electrón.Com.)