Key management refers to the systematic process of generating, storing, distributing, using, safeguarding, and revoking cryptographic keys. In the context of digital assets, this primarily involves the secure handling of private keys, which grant access and control over cryptocurrencies. Effective key management is fundamental to digital asset security.
Context
The security of private keys is a paramount concern, and news often highlights instances where inadequate key management practices have led to substantial asset theft. Solutions range from hardware security modules (HSMs) to multi-signature schemes, each with its own risk profile and operational considerations. Robust key management protocols are essential for institutional adoption and individual security.
Quantifying the performance of NIST-standardized post-quantum signature schemes proves that long-term, quantum-resistant blockchain security is computationally viable.
This new cryptographic primitive decouples intensive signature generation from constant-size verification, securing resource-constrained blockchain participation.
Expander Signature decouples heavy key generation from verification, enabling resource-limited devices to achieve constant-size, efficient, and forward-secure authentication.
A novel cryptographic primitive distributes signing authority across multiple parties, fundamentally mitigating single points of failure and bolstering decentralized system resilience.
This research introduces a blockchain-smart contract system using identity-based broadcast encryption to enable private, verifiable cloud data deduplication and auditing, removing central trust.
This research introduces Thetacrypt, a versatile library simplifying the integration of threshold cryptography, enhancing security and distributed trust in blockchain environments.
A compromised private key enabled unauthorized contract upgrades, allowing an attacker to drain assets and exposing critical vulnerabilities in key management systems.
A foundational cryptographic breakthrough enables distributed computation and key management without revealing private inputs, unlocking new frontiers for on-chain privacy and robust security.
This research introduces threshold signature schemes, specifically CGGMP21, to fundamentally enhance Central Bank Digital Currency security by eliminating single points of failure in private key management.
A critical vulnerability in Shibarium's validator key management enabled attackers to manipulate the bridge, leading to significant asset exfiltration.
A critical governance flaw in the Shibarium bridge allowed an attacker to manipulate validator control via a flash loan, enabling unauthorized asset exfiltration.
This research introduces a protocol for confidential smart contracts, leveraging Fully Homomorphic Encryption to process encrypted data on-chain, securing sensitive information in decentralized applications.
A critical vulnerability in Shibarium's cross-chain bridge allowed an attacker to manipulate governance tokens and seize validator control, leading to a multi-million dollar asset drain.
Malware compromised Truflation's operational security, enabling unauthorized access to treasury and personal funds, highlighting critical risks in key management.
This research validates threshold signatures for CBDCs, distributing key control to eliminate single points of failure and bolster financial system resilience.
This research introduces a novel BLS threshold signature scheme that maintains security against dynamic, adaptive adversaries, critical for robust decentralized systems.
A critical private key compromise enabled attackers to drain $48 million from BtcTurk hot wallets, exposing systemic risks in centralized exchange key management.
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