Grover's algorithm means you need to double the length of your hashes, but that hardly puts sha-512 in danger. Even sha-256 is safer than a naive calculation wo

Grover's algorithm means you need to double the length of your hashes, but that hardly puts sha-512 in danger. Even sha-256 is safer than a naive calculation would suggest: https://arxiv.org/pdf/1603.09383 https://arxiv.org/pdf/1603.09383