搜索结果: 1-15 共查到“知识库 E-Cash”相关记录63条 . 查询时间(0.089 秒)
Divisible E-Cash from Constrained Pseudo-Random Functions
E-Cash anonymity Constrained PRF
2019/2/26
Electronic cash (e-cash) is the digital analogue of regular cash which aims at preserving users' privacy. Following Chaum's seminal work, several new features were proposed for e-cash to address the p...
Aggregate Cash Systems: A Cryptographic Investigation of Mimblewimble
Mimblewimble Bitcoin commitments
2018/11/2
Mimblewimble is an electronic cash system proposed by an anonymous author in 2016. It combines several privacy-enhancing techniques initially envisioned for Bitcoin, such as Confidential Transactions ...
Off-line Digital Cash Schemes Providing Unlinkability, Anonymity and Change
Digital money group blind signature double spending
2017/12/25
Several ecash systems have been proposed in the last twenty years or so,each offering features similar to real cash. One feature which to date has not been provided is that of a payee giving change to...
Zero-Knowledge Arguments for Lattice-Based PRFs and Applications to E-Cash
Lattices pseudo-random functions zero-knowledge arguments
2017/9/13
Beyond their security guarantees under well-studied assumptions, algebraic pseudo-random functions are motivated by their compatibility with efficient zero-knowledge proof systems, which is useful in ...
AEP-M: Practical Anonymous E-Payment for Mobile Devices using ARM TrustZone and Divisible E-Cash (Full Version)
E-Payment Privacy Mobile Devices TrustZone
2016/5/23
Electronic payment (e-payment) has been widely applied to electronic commerce and has especially attracted a large number of mobile users. However, current solutions often focus on protecting users' m...
The Impact of the PROGRESA/Oportunidades Conditional Cash Transfer Program on Health and Related Outcomes for the Aging in Mexico
Aging Conditional cash transfers Health Mexico
2016/3/18
Conditional cash transfer (CCT) programs link public transfers to human capital investment in hopes of alleviating current poverty and reducing its intergenerational transmission. Whereas nearly all s...
Cryptanalysis on “Secure untraceable off-line electronic cash system”
digital signatures discrete logarithm problem cryptanalysis
2016/1/26
Recently, Baseri et al. proposed a secure untraceable off-line electronic cash
system. They claimed that their scheme could achieve security requirements of an
e-cash system such as, untraceability,...
Divisible E-cash systems allow users to withdraw a unique coin of value 2n
from a bank, but
then to spend it in several times to distinct merchants. In such a system, whereas users want anonymity of...
Fair Multiple-bank E-cash in the Standard Model
Fair multiple-bank e-cash Automorphic blind signature Groth-Sahai proof
2016/1/5
Multiple-bank e-cash (electronic cash) model allows users and merchants to open
their accounts at different banks which are monitored by the Center Bank. Some multiple-bank
e-cash systems were propo...
Compact e-cash schemes allow users to withdraw a wallet containing K coins and
to spend each coin unlinkably. We present the first compact e-cash scheme with arbitrary
wallet size k ≤ K while ...
Divisible E-cash has been introduced twenty years ago but no construction is both fully secure in the standard model and efficiently scalable. In this paper, we fill this gap by providing an anonymous...
Practical Divisible E-Cash
E-Cash divisible constant-size
2015/12/31
Divisible e-cash systems allow a user to withdraw a wallet containing K coins and to spend
k ≤ K coins in a single operation, respectively. Independent of the new work of Canard, Pointcheval,
...
This paper introduces a new P2P Electronic Cash system called Netcoin. The purpose of Netcoin is to facilitate inexpensive peer-to-peer monetary transactions on the Web. Its salient features are that ...
Cut Down the Tree to Achieve Constant Complexity in Divisible E-Cash
Divisible E-Cash Anonymity Bilinear Groups
2015/12/22
Divisible e-cash, proposed in 1991 by Okamoto and Ohta, addresses a practical concern
of electronic money, the problem of paying the exact amount. Users of such systems can indeed
withdraw coins of ...
Randomization,Endogeneity and Laboratory Experiments:The Role of Cash Balances in Private Value Auctions
Randomization Endogeneity Laboratory Experiments Cash Balances Private Value Auctions
2015/9/18
From a theoretical perspective, cash balances are thought to play a role in common value auctions because of limited liability. However, they have also been found to be important in common value aucti...