Post #13311 95 Jul 11, 2026, 04:29 UTC Quantum Computers Are Not a Threat to 128-bit Symmetric Keyshttps://words.filippo.io/128-bits/https://redd.it/1usmas0@programmingreddit words.filippo.io Quantum Computers Are Not a Threat to 128-bit Symmetric Keys There is no need to update symmetric key sizes as part of the post-quantum transition, due to the details of how Grover's algorithm scales. Most authorities agree.