ME News Report, May 19 (UTC+8), BlockBeats reports that BNB Chain has released the "BSC Post-Quantum Cryptography Migration Report," announcing the completion of the post-quantum cryptography migration testing. BSC replaced ECDSA with the NIST standardized post-quantum signature algorithm ML-DSA-44 (Dilithium) in transaction signatures and adopted the pqSTARK aggregation scheme in consensus voting to defend against potential threats of quantum computing to elliptic curve cryptography.

After migration, the size of a single transaction increased from about 110 bytes to 2.5 KB, and the block size increased from approximately 130 KB to 2 MB under 2000 TPS, with TPS decreasing by about 40%-50% in testing environments. Despite this, the current network bottleneck mainly lies in the increased transmission of transaction data, while the consensus protocol itself remains efficient.
pqSTARK achieves approximately a 43:1 signature compression ratio, making verification burdens manageable.
The report indicates that existing technology can enable "quantum-resistant" deployment of blockchain, but challenges related to network bandwidth and data scalability need to be addressed. (Source: MLion)