post-quantum cryptography
4 mentions across all digests
Cryptographic techniques designed to resist attacks from quantum computers, being adopted by OpenSSH and targeted for migration by Google by 2029 amid concerns over Bitcoin's vulnerability.
Quantum Computers Are Not a Threat to 128-Bit Symmetric Keys
Symmetric cryptography like AES remains quantum-safe due to parallelization constraints limiting Grover's algorithm; only asymmetric crypto (RSA, ECDH) requires post-quantum migration.
Hybrid Constructions: The Post-Quantum Safety Blanket
Google and Cloudflare announce 2029 post-quantum migration targets while cryptographer Soatok argues hybrid key encapsulation mechanisms offer practical protection during the transition, but warns against hybrid signature schemes.
Bitcoin and Quantum Computing
Google targets quantum-resistant cryptography by 2029 while researchers assign 10% odds to cryptographically-relevant quantum computers by 2030—Bitcoin's survival hinges on a coordinated soft fork and ecosystem-wide wallet adoption before that window closes.
OpenSSH begins warning for non-PQC key exchanges
OpenSSH 10.1 defaults to quantum-resistant mlkem768x25519-sha256 and warns against legacy key exchanges vulnerable to future quantum decryption of stored traffic.