~ similar to 2603.26970v1· 20 results
This paper advances the lightweight blockchain verification protocol, FlyClient, by addressing technical challenges, introducing a new adversary model, and providing practical implementations and opti…
The paper introduces Bitcoin Smart Accounts (BSA), a novel, trust-minimized protocol enabling native Bitcoin to participate in DeFi while maintaining self-custody of funds.
zk-X509 is a privacy-preserving identity system that uses zero-knowledge proofs to prove ownership of standard X.509 certificates on a public blockchain without revealing private keys or personal data…
Hongxu Su, Mingzhe Liu, Jie Xu, Xiaohua Jia +1 more
GasLiteAA proposes optimizing the ERC-4337 standard by offloading gas sponsorship logic to Trusted Execution Environments (TEE), significantly reducing on-chain gas costs while maintaining security an…
Eunchan Park, Kyonghwa Song, Won Hoi Kim, Wonho Song +1 more
The paper introduces Deniable Covert Asset Transfer (DCAT), a method that stages asset transfers to appear as ordinary, loss-producing DeFi activities, achieving empirical unobservability on major blo…
Ahto Buldas, Dirk Draheim, Mike Gault, Risto Laanoja +2 more
The paper introduces the Unicity Execution Layer, a secure, modular component that enables trustless off-chain transactions while guaranteeing double-spending prevention and enhancing user privacy.
The paper introduces SuperPaymaster, an Asset-Oriented Abstraction (AOA) paymaster that eliminates the need for a centralized off-chain signer, thereby improving the decentralization and efficiency of…
The paper proposes a compliance-aware architecture for agentic payments on stablecoin rails that embeds regulatory checks directly into the on-chain execution flow to ensure safe, low-friction transfe…
Shengchen Ling, Yihang Huang, Yuan Chen, Yajin Zhou +2 more
This paper analyzes the x402 payment protocol, revealing systemic vulnerabilities in state synchronization and signature design that allow attackers to exploit payment systems for resource leakage in…
Shengchen Ling, Yihang Huang, Yuan Chen, Yajin Zhou +2 more
This paper analyzes the x402 payment protocol, revealing critical synchronization and security flaws that allow attackers to exploit payment systems and force merchants to subsidize compute costs.
The paper argues that endogenous tokens on public, permissionless ledgers are not money because the underlying ledger structure fails to provide a cash-like privacy primitive, exposing holders to syst…
The paper systematically analyzes 36 existing and proposed digital payment system designs to identify recurring patterns, technical trade-offs, and implementation challenges relevant for future Centra…
The paper introduces the Human Delegation Provenance (HDP) protocol, a lightweight, token-based cryptographic scheme designed to verify the full, multi-hop chain of human authorization for actions exe…
MEV-ACE introduces a fair ordering protocol that mitigates proposer-controlled MEV by combining authenticated economic identities, auditable commit/open messages, and verifiable delay randomness to en…
The paper introduces probabilistic swaps, a new cryptographic primitive that extends traditional atomic swaps to enable trustless, randomized exchanges with verifiable, fixed probabilities.
The paper proposes n-VM, a novel Layer-1 architecture that unifies multiple heterogeneous virtual machines (VMs) onto a shared consensus and state layer, solving cross-chain fragmentation issues.
The paper introduces presidio-hardened-x402, an open-source middleware that intercepts x402 payment requests to detect and redact PII and enforce spending policies before on-chain settlement.
Intercloud proposes a decentralized economic network that achieves eventual consistency and security using a novel 'chilling-effect consensus' mechanism, eliminating the need for global coordination.
APEX is a research system that adapts HTTP 402-style payment gating for autonomous agents, enabling programmatic spend governance using real-world fiat payment workflows like UPI.
This paper analyzes the x402 agentic payment protocol, demonstrating through five concrete, practical attacks that it is vulnerable across multiple stages of its payment workflow.