China's post-quantum cryptography algorithm plan found to have multiple critical vulnerabilities, involving Bitcoin's quantum security preparations

Odaily reports: Bitcoin News posted on X that China launched a next-generation commercial cryptography algorithm initiative in 2025, aimed at developing and evaluating cryptographic standards capable of withstanding future quantum computers. Independent researcher @mjos_crypto, while analyzing the candidate algorithms, has discovered critical vulnerabilities in multiple proposed algorithms, including publicly reproducible private keys, easily constructible hash collisions, and signature implementations that accept invalid signatures. Bitcoin currently relies on well-validated elliptic curve cryptography, which quantum computers may pose a threat to its security model in the future; however, prematurely adopting insufficiently tested post-quantum cryptography schemes could also introduce vulnerabilities before quantum threats emerge.