New quantum algorithm cuts ECC attack requirement to 5n/2 logical qubits
AI Summary- Sunghyeon Jo and Gye Jin Lee introduced a lower-resource algorithm for solving elliptic curve discrete logarithms.
- The method uses 5n/2 + o(n) logical qubits and Õ(n²) Toffoli gates.
- Luo et al. previously reported a 3n qubit coefficient in work posted July and updated August 2026.