搜索结果: 1-15 共查到“军事学 Access”相关记录93条 . 查询时间(0.039 秒)
A Blockchain-Based Access Control Scheme for Smart Grids
smart grids access control blockchain
2019/8/2
At present, the access control schemes in the power grid are centralized. In the centralized system, the data of the network sensor nodes is transmitted by centralized nodes, and the data itself may b...
A Candidate Access Structure for Super-polynomial Lower Bound on Information Ratio
secret sharing general access structures information ratio
2019/6/3
The contribution vector (convec) of a secret sharing scheme is the vector of all share sizes divided by the secret size. A measure on the convec (e.g., its maximum or average) is considered as a crite...
Continuously Non-Malleable Secret Sharing for General Access Structures
Secret sharing Non-malleability Leakage resilience
2019/6/3
We study leakage-resilient continuously non-malleable secret sharing, as recently intro- duced by Faonio and Venturi (CRYPTO 2019). In this setting, an attacker can continuously tamper and leak from a...
Full Database Reconstruction with Access and Search Pattern Leakage
Searchable Encryption Encrypted Databases Leakage-Abuse Attacks
2019/4/22
The widespread use of cloud computing has enabled several database providers to store their data on servers in the cloud and answer queries from those servers. In order to protect the confidentiality ...
What Storage Access Privacy is Achievable with Small Overhead?
oblivious RAM differential privacy lower bounds
2019/4/16
Oblivious RAM (ORAM) and private information retrieval (PIR) are classic cryptographic primitives used to hide the access pattern to data whose storage has been outsourced to an untrusted server. Unfo...
Secret-Sharing Schemes for General and Uniform Access Structures
secret sharing conditional disclosure of secrets protocols private simultaneous messages protocols
2019/3/4
A secret-sharing scheme allows some authorized sets of parties to reconstruct a secret; the collection of authorized sets is called the access structure. For over 30 years, it was known that any (mono...
Stronger Leakage-Resilient and Non-Malleable Secret-Sharing Schemes for General Access Structures
Non-malleable secret sharing Leakage-resilient secret sharing Non-malleable extractors
2018/12/3
In this work we present a collection of compilers that take secret sharing schemes for an arbitrary access structures as input and produce either leakage-resilient or non-malleable secret sharing sche...
Organizational Cryptography for Access Control
public-key cryptography elliptic curve cryptosystem
2018/11/21
A cryptosystem for granting/rescinding access permission is proposed, based on elliptic curve cryptography. The `Organizational Cryptosystem' grants access permission not by giving secret (decription)...
Asymptotically Ideal CRT-based Secret Sharing Schemes for Multilevel and Compartmented Access Structures
cryptographic protocols secret sharing
2018/11/8
Multilevel and compartmented access structures are two important classes of access structures where participants are grouped into levels/compartments with different degrees of trust and privileges. Th...
Non-Malleable Secret Sharing for General Access Structures
Non-Malleable Codes Secret Sharing
2018/8/20
Goyal and Kumar (STOC'18) recently introduced the notion of non-malleable secret sharing. Very roughly, the guarantee they seek is the following: the adversary may potentially tamper with all of the s...
CHARIOT: Cloud-Assisted Access Control for the Internet of Things
access control cloud computing Internet of Things
2018/6/27
The Internet of Things (IoT) technology has expanded widely across the world, promising new data management opportunities for industries, companies and individuals in different sectors, such as health...
Monotone Batch NP-Delegation with Applications to Access Control
delegation witness indistinguishability access control
2018/5/2
Consider an access policy for some resource which only allows access to users of the system who own a certain set of attributes. Specifically, we consider the case where such an access structure is de...
We consider a scenario where a server holds a huge database that it wants to make accessible to a large group of clients. After an initial setup phase, clients should be able to read arbitrary locatio...
Hermes. A framework for cryptographically assured access control and data security
persistent storage operations CRUD cryptographic enforcements of access control
2018/3/5
This paper presents Hermes – a practical data security scheme with a reference implementation, which enables distributed sharing and collaboration, enforcing access control with the help of cryptograp...
Paralysis Proofs: Safe Access-Structure Updates for Cryptocurrencies and More
blockchain, access structure, trusted hardware
2018/1/29
Suppose that NN players share cryptocurrency using an M-of-N multisig scheme. If N-M+1 players disappear, the remaining ones have a problem: They’ve permanently lost their funds. We introduce Paralysi...