Search

Your search keyword '"Lv, Kewei"' showing total 47 results
Start Over Author "Lv, Kewei"
47 results on '"Lv, Kewei"'

3. General Constructions of Fuzzy Extractors for Continuous Sources

Author

Ma, Yucheng, Shen, Peisong, Lv, Kewei, Tian, Xue, Chen, Chi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and Ge, Chunpeng, editor

Published
2024
Full Text
View/download PDF

5. Three-Party Integer Comparison and Applications

Author

Ma, Jie, Qi, Bin, and Lv, Kewei

Subjects
Computer Science - Cryptography and Security
Abstract

Secure integer comparison has been a popular research topic in cryptography, both for its simplicity to describe and for its applications. The aim is to enable two parties to compare their inputs without revealing the exact value of those inputs. In this paper, we highlight three-party integer comparison (TPIC), where a \emph{judge}, with no private input, wants to know the comparison result, while two \emph{competitors} hold secret integers to do privacy-preserving comparison. The judge actively obtains the result rather than passively waiting for it sent by a competitor. We give two TPIC constructions considering \emph{Mixed adversaries}, who have with different capabilities. One is secure against a semi-honest adversary with low computation and communication cost, while the other is secure against a malicious adversary. Basing on TPIC, we present multi-party comparisons through concrete applications, including a joint bidding scheme and a practical auction. Brief security proofs and analysis for the applications are presented. In comparison, our auction scheme is more efficient with lower cost, making it feasible in practice rather than a theoretical design. All the comparisons and application schemes run on top of blockchain requiring a constant number of rounds.

Published
2021

6. Secure Sketch and Fuzzy Extractor with Imperfect Randomness: An Information-Theoretic Study

Author

Chen, Kaini, Shen, Peisong, Lv, Kewei, Chen, Chi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Alcaraz, Cristina, editor, Chen, Liqun, editor, Li, Shujun, editor, and Samarati, Pierangela, editor

Published
2022
Full Text
View/download PDF

7. Using Equivalent Class to Solve Interval Discrete Logarithm Problem

Author

Qi, Bin, Ma, Jie, Lv, Kewei, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Zhou, Jianying, editor, Luo, Xiapu, editor, Shen, Qingni, editor, and Xu, Zhen, editor

Published
2020
Full Text
View/download PDF

11. Solving Discrete Logarithm Problem in an Interval Using Periodic Iterates

Author

Liu, Jianing, Lv, Kewei, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Qing, Sihan, editor, Mitchell, Chris, editor, Chen, Liqun, editor, and Liu, Dongmei, editor

Published
2018
Full Text
View/download PDF

12. The Reductions for the Approximating Covering Radius Problem

Author

Wang, Wenwen, Lv, Kewei, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Qing, Sihan, editor, Mitchell, Chris, editor, Chen, Liqun, editor, and Liu, Dongmei, editor

Published
2018
Full Text
View/download PDF

14. Rounding Technique’s Application in Schnorr Signature Algorithm: Known Partially Most Significant Bits of Nonce

Author

Qin, Wenjie, Lv, Kewei, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Batten, Lynn, editor, Kim, Dong Seong, editor, Zhang, Xuyun, editor, and Li, Gang, editor

Published
2017
Full Text
View/download PDF

15. The Security of Polynomial Information of Diffie-Hellman Key

Author

Wang, Yao, Lv, Kewei, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Qing, Sihan, editor, Okamoto, Eiji, editor, Kim, Kwangjo, editor, and Liu, Dongmei, editor

Published
2016
Full Text
View/download PDF

16. On Promise Problem of the Generalized Shortest Vector Problem

Author

Wang, Wenwen, Lv, Kewei, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Qing, Sihan, editor, Okamoto, Eiji, editor, Kim, Kwangjo, editor, and Liu, Dongmei, editor

Published
2016
Full Text
View/download PDF

17. The Security of Individual Bit for XTR

Author

Lv, Kewei, Ren, Si-wei, Qin, Wenjie, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Lam, Kwok-Yan, editor, Chi, Chi-Hung, editor, and Qing, Sihan, editor

Published
2016
Full Text
View/download PDF

18. The Variant of Remote Set Problem on Lattices

Author

Wang, Wenwen, Lv, Kewei, Liu, Jianing, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Lam, Kwok-Yan, editor, Chi, Chi-Hung, editor, and Qing, Sihan, editor

Published
2016
Full Text
View/download PDF

19. Improved Security Proof for Modular Exponentiation Bits

Author

Lv, Kewei, Qin, Wenjie, Wang, Ke, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chen, Jiageng, editor, Piuri, Vincenzo, editor, Su, Chunhua, editor, and Yung, Moti, editor

Published
2016
Full Text
View/download PDF

23. Efficient Multiparty Fully Homomorphic Encryption With Computation Fairness and Error Detection in Privacy Preserving Multisource Data Mining

Author

Guo, Guanglai, Zhu, Yan, Chen, E., Yu, Ruyun, Zhang, Lejun, Lv, Kewei, and Feng, Rongquan

Abstract

In this article, we address the problem of data privacy in multisource data mining. To do it, we present a new multiparty fully homomorphic encryption (MP-FHE) scheme, in which all participants are completely fair to perform the same computation. At first, the proposed MP-FHE scheme is divided into five stages (i.e., calculation, configuration, recombination, resharing, and reconstruction stage) to achieve the unified computation form of addition and multiplication. Meanwhile, random bivariate polynomials and commutative encryption are used to achieve the degree reduction of polynomials and the continuity of computation. Moreover, we prove that the scheme meets result consistency and program termination under the fail-stop adversary model. Especially, three kinds of error detection criteria are presented to find errors in three different stages (i.e., recombination, resharing, and reconstruction stage), which provides the monitor basis for the fail-stop adversary model. In addition, the MP-FHE scheme is applied into privacy preserving k-means clustering algorithm. Finally, we evaluate the computation and communication performance of our scheme from both theoretical and experimental aspects, and the evaluation results show that the scheme is efficient enough for multisource data mining.

Published
2023
Full Text
View/download PDF

27. A New Hard-Core Predicate of Paillier’s Trapdoor Function

Author

Su, Dong, Lv, Kewei, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Roy, Bimal, editor, and Sendrier, Nicolas, editor

Published
2009
Full Text
View/download PDF

29. Revised Fischlin’s (Blind) Signature Schemes

Author

Lv, Kewei, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Hao, Yue, editor, Liu, Jiming, editor, Wang, Yu-Ping, editor, Cheung, Yiu-ming, editor, Yin, Hujun, editor, Jiao, Licheng, editor, Ma, Jianfeng, editor, and Jiao, Yong-Chang, editor

Published
2005
Full Text
View/download PDF

30. Reusable Group Fuzzy Extractor and Group-Shared Bitcoin Wallet.

Author

Ma, Jie, Qi, Bin, and Lv, Kewei

Subjects
BITCOIN, WALLETS, ENTROPY, BIOMETRY
Abstract

In this paper, we propose a novel cryptographic primitive named reusable group fuzzy extractor (RGFE) allowing any member of a group to extract and reproduce random strings from a fuzzy and non-uniform source of high entropy (called fingerprint). Any group member can anonymously generate a random string for the group using his fingerprint and can be traced when needed, whereas other members can reproduce the string using their own fingerprints. Moreover, a fingerprint can be repeatedly used to generate multiple random strings. Basing on RGFE, we present group-shared Bitcoin wallet, which can be used by a group of users to receive or spend coins via biometrics in a traceable way. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

46. Verifiable Signature Sharing Scheme Based on Strong RSA Assumption

Author

Lv, Kewei and Yang, YAnhua

Subjects
Digital signature, Hash function, Strong RSA, Verifiable Signature Sharing, Discrete-log
Abstract

In 2000, Cramer and Shoup presented a signature scheme which is secure against adaptive chosen-message attacks under the strong RSA assumption in the standard model. Then, in 2003, under the strong RSA assumption only, Fischlin produced a signature of roughly half the length. A verifiable signature sharing scheme (V§S) introduced by Franklin and Reiter in 1995 enables the recipient of a signature to share it among n proxies so that a subset of them can reconstruct it later. In this paper, we first give a modification of Fischlin’s scheme under the strong RSA assumption and then get a new verifiable signature sharing scheme based on it in the standard model. At last, we prove that our new V§S can tolerate the malicious behavior of up to half of the proxies corrupted by a static adversary except for a negligible probability. Our scheme is efficient and the length of signature in our scheme is similar to Fischlin’s and roughly half of Cramer-Shoup signature scheme.

Published
2009

Catalog

Books, media, physical & digital resources
See catalog results