research
∙
08/01/2022
Maximal Extractable Value (MEV) Protection on a DAG
Many cryptocurrency platforms are vulnerable to Maximal Extractable Valu...
share
research
∙
09/15/2021
Reinshard: An optimally sharded dual-blockchain for concurrency resolution
Decentralized control, low-complexity, flexible and efficient communicat...
research
∙
09/05/2021
Post-Quantum VRF and its Applications in Future-Proof Blockchain System
A verifiable random function (VRF in short) is a powerful pseudo-random ...
research
∙
04/28/2021
Accountable Fine-grained Blockchain Rewriting in the Permissionless Setting
Blockchain rewriting with fine-grained access control allows a user to c...
research
∙
11/12/2020
Securing Password Authentication for Web-based Applications
The use of passwords and the need to protect passwords are not going awa...
research
∙
10/20/2020
Exploring HTTPS Security Inconsistencies: A Cross-Regional Perspective
If two or more identical HTTPS clients, located at different geographic ...
research
∙
10/18/2020
BBB-Voting: 1-out-of-k Blockchain-Based Boardroom Voting
Voting is a means to agree on a collective decision based on available c...
research
∙
07/31/2020
Password-authenticated Decentralized Identities
Password-authenticated identities, where users establish username-passwo...
research
∙
07/05/2020
Decentralized Lightweight Detection of Eclipse Attacks on Bitcoin Clients
Clients of permissionless blockchain systems, like Bitcoin, rely on an u...
research
∙
06/02/2020
ProPoS: A Probabilistic Proof-of-Stake Protocol
We present ProPoS, a Proof-of-Stake protocol dedicated, but not limited,...
research
∙
05/27/2020
Aquareum: A Centralized Ledger Enhanced with Blockchain and Trusted Computing
Distributed ledger systems (i.e., blockchains) have received a lot of at...
research
∙
05/09/2020
A First Look into DeFi Oracles
Recently emerging Decentralized Finance (DeFi) takes the promise of cryp...
research
∙
03/30/2020
SmartCert: Redesigning Digital Certificates with Smart Contracts
The Transport Layer Security (TLS) protocol and its public-key infrastru...
research
∙
03/17/2020
SMACS: Smart Contract Access Control Service
Although blockchain-based smart contracts promise a “trustless” way of e...
research
∙
03/13/2020
Fail-safe Watchtowers and Short-lived Assertions for Payment Channels
The recent development of payment channels and their extensions (e.g., s...
research
∙
10/22/2019
The Security Reference Architecture for Blockchains: Towards a Standardized Model for Studying Vulnerabilities, Threats, and Defenses
Due to their specific features, such as decentralization and immutabilit...
research
∙
06/29/2019
Towards Forward Secure Internet Traffic
Forward Secrecy (FS) is a security property in key-exchange algorithms w...
research
∙
06/15/2019
Does "www." Mean Better Transport Layer Security?
Experience shows that most researchers and developers tend to treat plai...
research
∙
05/23/2019
StrongChain: Transparent and Collaborative Proof-of-Work Consensus
Bitcoin is the most successful cryptocurrency so far. This is mainly due...
research
∙
04/15/2019
A Security Reference Architecture for Blockchains
Due to their interesting features, blockchains have become popular in re...
research
∙
03/10/2019
Permissionless Blockchains and Secure Logging
The blockchain technology enables mutually untrusting participants to re...
research
∙
12/10/2018
An Air-Gapped 2-Factor Authentication for Smart-Contract Wallets
With the recent rise of cryptocurrencies, the security and management of...
research
∙
09/25/2018
BlockPKI: An Automated, Resilient, and Transparent Public-Key Infrastructure
This paper describes BlockPKI, a blockchain-based public-key infrastruct...
research
∙
09/15/2018
DSTC: DNS-based Strict TLS Configurations
Most TLS clients such as modern web browsers enforce coarse-grained TLS ...
research
∙
08/20/2018
PDFS: Practical Data Feed Service for Smart Contracts
Smart contracts are a new paradigm that emerged with the rise of the blo...
research
∙
06/12/2018
Rethinking Blockchain Security: Position Paper
Blockchain technology has become almost as famous for incidents involvin...
research
∙
04/12/2018
A Metapolicy Framework for Enhancing Domain Expressiveness on the Internet
Domain Name System (DNS) domains became Internet-level identifiers for e...
research
∙
04/03/2018
Blockchain-based TLS Notary Service
The Transport Layer Security (TLS) protocol is a de facto standard of se...
research
∙
03/24/2018