SYN cookies in both Linux and FreeBSD uses siphash. * FreeBSD: https://svnweb.freebsd.org/base?view=revision&revision=253210 (since 2013) * Linux: https://github.com/torvalds/linux/commit/fe62d05b295bde037fa324767674540907c89362#diff-14feef60c3dbcf67539f089de04546c907233cbae09e1b2dd2c2bc6d6eae4416 (since 2017) I believe that the SYN cookies have exactly the same properties as DNS cookies. Ondrej -- Ondřej Surý (He/Him) ondrej@xxxxxxx > On 2. 12. 2020, at 22:15, Eric Rescorla <ekr@xxxxxxxx> wrote: > > Well hash tables are an application with somewhat different security properties than MACs, so I don't think this is dispositive. > -- last-call mailing list last-call@xxxxxxxx https://www.ietf.org/mailman/listinfo/last-call
