Odaily Planet Daily reports: Sonic details its technological roadmap for the "post-quantum era," noting that most current PoS blockchains rely on elliptic curve signatures (such as ECDSA and Ed25519), which are vulnerable to being broken once quantum computing (e.g., Shor's algorithm) becomes mature.
Sonic noted that the industry is exploring post-quantum cryptographic solutions, such as hash-based XMSS and SPHINCS+, and lattice-based Dilithium and Falcon. However, mainstream consensus mechanisms widely rely on BLS aggregate signatures and threshold signatures, and transitioning to a post-quantum system presents challenges in performance, bandwidth, and architectural redesign.
In contrast, Sonic's SonicCS consensus protocol does not rely on aggregated signatures or global randomness; instead, it constructs a DAG structure using only single-node signatures and hash functions. Therefore, when transitioning to quantum-resistant cryptography, only the signature algorithm needs to be replaced, without requiring any changes to the consensus logic or network structure.
Sonic emphasized that this design will significantly reduce the complexity of migrating to quantum-resistant security in the future, making the network more adaptable when quantum computing threats emerge.