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pro vyhledávání: '"Kwangsu Lee"'
Autor:
Kwangsu Lee
Publikováno v:
IEEE Access, Vol 11, Pp 52636-52652 (2023)
Revocable identity-based encryption (RIBE) is an extension of identity-based encryption (IBE) and it supports efficient revocation of private keys. In the past, many efficient RIBE schemes have been proposed, but research on efficiently delegating th
Externí odkaz:
https://doaj.org/article/bc953f82c5594ba4a754409eab0b9adb
Autor:
Kwangsu Lee, Joon Sik Kim
Publikováno v:
IEEE Access, Vol 10, Pp 44178-44199 (2022)
Revocable hierarchical identity-based encryption (RHIBE) is an extension of HIBE that provides the efficient key revocation function by broadcasting an update key per each time period. Many RHIBE schemes have been proposed by combining an HIBE scheme
Externí odkaz:
https://doaj.org/article/de83dcf0fa7e4a9d8ec28fdeb5e0e428
Autor:
Kwangsu Lee
Publikováno v:
IEEE Access, Vol 10, Pp 62670-62692 (2022)
In multi-client functional encryption (MC-FE) for predicate queries, clients generate ciphertexts of plaintexts $x_{1}, \ldots, x_{n}$ binding with a time period $T$ and store them on a cloud server, and the cloud server receives a function key corre
Externí odkaz:
https://doaj.org/article/3a6fa35affec4efc8d80f6c6536d8723
Autor:
Kwangsu Lee, Hyoseung Kim
Publikováno v:
Mathematics, Vol 11, Iss 14, p 3223 (2023)
Multi-signatures (MS) are a special type of public-key signature (PKS) in which multiple signers participate cooperatively to generate a signature for a single message. Recently, applications that use an MS scheme to strengthen the security of blockc
Externí odkaz:
https://doaj.org/article/af7d0f6a3a4f46cf89673c8047184bd0
Autor:
Kwangsu Lee, Jong Hwan Park
Publikováno v:
IEEE Access, Vol 7, Pp 60333-60347 (2019)
Identity-based revocation (IBR) is a specific kind of broadcast encryption that can effectively send ciphertext to a set of receivers. In IBR, a ciphertext is associated with a set of revoked users instead of a set of receivers and the maximum number
Externí odkaz:
https://doaj.org/article/897ef96ad1b74cafbcf24c54bfcdbfb3
Autor:
Kwangsu Lee
Publikováno v:
IEEE Access, Vol 7, Pp 165122-165126 (2019)
Cloud storage is a new computing paradigm that allows users to store their data in the cloud and access them anytime anywhere through the Internet. To address the various security issues that may arise in the cloud storage accessed by a large number
Externí odkaz:
https://doaj.org/article/eea0b9bbc07847e2acf195fe41637941
Autor:
Kwangsu Lee
Publikováno v:
PLoS ONE, Vol 15, Iss 9, p e0239053 (2020)
To deal with dynamically changing user's credentials in identity-based encryption (IBE), providing an efficient key revocation method is a very important issue. Recently, Ma and Lin proposed a generic method of designing a revocable IBE (RIBE) scheme
Externí odkaz:
https://doaj.org/article/4e7277a37c5d4662815071faf62271be
Publikováno v:
IEEE Access, Vol 6, Pp 45458-45472 (2018)
Order-revealing encryption is a useful cryptographic primitive that provides range queries on encrypted data since anyone can compare the order of plaintexts by running a public comparison algorithm. Most studies on order-revealing encryption focus o
Externí odkaz:
https://doaj.org/article/e2d4ae8d3fc7400fbb3a359942c0836a
Autor:
Kwangsu Lee, Dong Hoon Lee
Publikováno v:
PLoS ONE, Vol 10, Iss 5, p e0128081 (2015)
Aggregate signatures allow anyone to combine different signatures signed by different signers on different messages into a short signature. An ideal aggregate signature scheme is an identity-based aggregate signature (IBAS) scheme that supports full
Externí odkaz:
https://doaj.org/article/4bc764e00dec46d2896f9a7860d872a1
Autor:
Kwangsu Lee
Publikováno v:
Designs, Codes and Cryptography. 91:1053-1093
Functional encryption (FE) is a new paradigm of public key encryption that can control the exposed information of plaintexts by supporting computation on encrypted data. In this paper, we propose efficient multi-client FE (MCFE) schemes that compute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::086c90004e90cee0a2f52f7f0e127e8c
https://doi.org/10.1007/s10623-022-01139-8
https://doi.org/10.1007/s10623-022-01139-8