QC will break AES 128 and reduce the margin of security for AES 256 is my unders... | Hacker News

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		ls612 on March 12, 2024 \| parent \| context \| favorite \| on: Google's threat model for post-quantum cryptograph... QC will break AES 128 and reduce the margin of security for AES 256 is my understanding.

NovemberWhiskey on March 12, 2024 [–]

QC is worth a one bit of reduction in security strength for AES.

ls612 on March 12, 2024 | [–]

No it’s worth a 1/2 reduction in the number of bits. So 256 becomes effectively 128 bit encryption. Idk though if the solution could be as simple as creating “AES 512”.

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