> All of these questions have been addressed already in the thread. I have not seen any. Only messages "it could not be the truth". Ed/ -----Original Message----- From: Saku Ytti <[email protected]> Sent: Monday, September 8, 2025 21:23 To: Vasilenko Eduard <[email protected]> Cc: North American Network Operators Group <[email protected]>; Dan Collins <[email protected]> Subject: Re: MD5 is slow
On Mon, 8 Sept 2025 at 11:00, Vasilenko Eduard <[email protected]> wrote: > Your comments on the performance are very important. > I still believe that any Hash must be slow enough, because if it were > fast, then the attacker could take a big GPU and brute force it (The routing > message is very predictable; only the password is not known, but could be > tested from the dictionary). > But what is slow? us or ms? > In support of the latter, look to > https://www.ijcna.org/Manuscripts/IJCNA-2020-O-01.pdf. > It is hundreds of cycles per byte. > Acceleration helps, but not much (around 3x) > https://github.com/minio/sha256-simd/blob/master/README.md. > A few milliseconds per every hop is expensive. All of these questions have been addressed already in the thread. I'm not sure what to do here, should we repeat the answers? -- ++ytti _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/BKY32ENLYQIC4QL2HR25C2AYP3ONSHLO/
