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Ledger CTO Analyzes Post-Quantum Cryptography Migration, Blockchain Favors Hash-Based Signature Schemes

Ledger Chief Technology Officer Charles Guillemet pointed out that the development of post-quantum cryptography has entered a critical stage. Although the timeline for a practical quantum computer remains unclear, a full-scale migration of the encryption systems across the industry is an inevitable trend. Led by NIST, the traditional sector plans to phase out high-risk algorithms by 2030 and completely ban them by 2035, with government and enterprise institutions expected to complete their migration layouts by 2029. Encryption and key exchange will adopt ML-KEM to defend against quantum decryption attacks on harvested data, with digital signatures becoming the core of blockchain transformation. The traditional industry prefers ML-DSA hybrid schemes, while the blockchain sector favors the more secure and robust SLH-DSA hash-based signature. Both schemes have their respective advantages and disadvantages. The compatibility challenges of post-quantum algorithms with MPC and threshold signatures remain a key risk that the industry urgently needs to address.

eToro Announces Acquisition of Self-Custody Wallet Zengo to Accelerate Expansion into On-Chain Financial Ecosystem

According to GlobeNewswire, eToro, a trading and investment platform, announced it has signed an agreement to acquire Zengo, a leading self-custodial crypto wallet provider. This acquisition aims to deepen eToro’s digital asset capabilities and accelerate its strategic initiative to bridge traditional finance with on-chain infrastructure. Founded in 2018, Zengo builds its keyless wallet architecture on Multi-Party Computation (MPC) cryptographic technology. It currently serves over 2 million users across more than 180 countries and regions, and has never experienced a wallet breach since its inception. Following the acquisition, eToro will leverage Zengo’s technological expertise to further support decentralized trading use cases—including tokenized assets, prediction markets, and perpetual contracts. The transaction is subject to customary closing conditions.