TY - JOUR
T1 - Efficient Local Secret Sharing for Distributed Blockchain Systems
AU - Kim, Yongjune
AU - Raman, Ravi Kiran
AU - Kim, Young Sik
AU - Varshney, Lav R.
AU - Shanbhag, Naresh R.
N1 - Manuscript received September 16, 2018; revised October 22, 2018 and November 24, 2018; accepted November 28, 2018. Date of publication December 10, 2018; date of current version February 11, 2019. This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT) (No. NRF-2017R1A2B2010588). The associate editor coordinating the review of this paper and approving it for publication was M. Baldi. (Corresponding author: Young-Sik Kim.) Y. Kim was with the Coordinated Science Laboratory, University of Illinois at Urbana–Champaign, Urbana, IL 61801 USA. He is now with Western Digital Research, Milpitas, CA 95035 USA (e-mail: [email protected]).
PY - 2019/2
Y1 - 2019/2
N2 - Blockchain systems store transaction data in the form of a distributed ledger where each peer is to maintain an identical copy. Blockchain systems resemble repetition codes, incurring high storage cost. Recently, distributed storage blockchain (DSB) systems have been proposed to improve storage efficiency by incorporating secret sharing, private key encryption, and information dispersal algorithms. However, the DSB results in significant communication cost when peer failures occur due to denial of service attacks. In this letter, we propose a new DSB approach based on a local secret sharing (LSS) scheme with a hierarchical secret structure of one global secret and several local secrets. The proposed DSB approach with LSS improves the storage and recovery communication costs.
AB - Blockchain systems store transaction data in the form of a distributed ledger where each peer is to maintain an identical copy. Blockchain systems resemble repetition codes, incurring high storage cost. Recently, distributed storage blockchain (DSB) systems have been proposed to improve storage efficiency by incorporating secret sharing, private key encryption, and information dispersal algorithms. However, the DSB results in significant communication cost when peer failures occur due to denial of service attacks. In this letter, we propose a new DSB approach based on a local secret sharing (LSS) scheme with a hierarchical secret structure of one global secret and several local secrets. The proposed DSB approach with LSS improves the storage and recovery communication costs.
KW - Blockchain
KW - distributed storage
KW - secret sharing
UR - http://www.scopus.com/inward/record.url?scp=85058190417&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058190417&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2018.2886016
DO - 10.1109/LCOMM.2018.2886016
M3 - Article
AN - SCOPUS:85058190417
SN - 1089-7798
VL - 23
SP - 282
EP - 285
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 2
M1 - 8571305
ER -