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Arcula: A Secure Hierarchical Deterministic Wallet for Multi-asset Blockchains
Hierarchical Deterministic Wallet Hierarchical Key Assignment Bitcoin Blockchain
2019/6/19
This work presents Arcula, a new design for hierarchical deterministic wallets that significantly improves the state of the art. Arcula is built on top of provably secure cryptographic primitives. It ...
Highly-Efficient and Composable Password-Protected Secret Sharing (Or: How to Protect Your Bitcoin Wallet Online)
password authentication secret-sharing threshold cryptosystems
2016/2/23
PPSS is a central primitive introduced by Bagherzandi et al [BJSL10] which allows a user to store a secret among n servers such that the user can later reconstruct the secret with the sole possession ...
Threshold-optimal DSA/ECDSA signatures and an application to Bitcoin wallet security
DSA ECDSA threshold signatures
2016/1/27
While threshold signature schemes have been presented before,
there has never been an optimal threshold signature algorithm for
DSA. Due to the properties of DSA, it is far more difficult to create ...
Private Key Recovery Combination Attacks: On Extreme Fragility of Popular Bitcoin Key Management, Wallet and Cold Storage Solutions in Presence of Poor RNG Events
applied cryptography bitcoin key management
2016/1/6
In this paper we study the question of key management and
practical operational security in bitcoin digital currency storage systems.
We study the security two most used bitcoin HD Wallet key manage...
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 ...
Is that a business credit card in your wallet?
business credit cards Exploitative practices legal protections
2011/8/28
The article examines use of business credit cards by small business. Research is cited indicating that credit cards are the leading source of capital for small business and of small business lending. ...
There are many ways consumers can use their spending power to
make a difference to the world. This article discusses the concept of
ethical consumerism and outlines some of the significant change...
Out of the Wallet and into the Purse: Using Micro Data to Test Income Pooling
Out of the Wallet Purse Micro Data Test Income Pooling
2016/3/7
This paper uses an exogenous change in the intrahousehold distribution of income, provided by a change in United Kingdom Family Allowance policy to test the income-pooling hypothesis implied by unitar...
Ethical Consumerism - Democracy through the Wallet
Ethical Consumerism - Democracy Wallet ethical consumerism
2011/6/9
There are many ways consumers can use their spending power to
make a difference to the world. This article discusses the concept of
ethical consumerism and outlines some of the significant changes i...