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SipHash-2-4 was designed as a conservative PRF/MAC with extra rounds against future attacks. For hash tables, where outputs are never exposed, SipHash-1-3 provides sufficient collision resistance with fewer rounds. As the SipHash author noted: "I would be very surprised if SipHash-1-3 introduced weaknesses for hash tables." DNS cookies continue to use SipHash-2-4 since cookie values are sent on the wire and must resist online attacks. |
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| isc | ||
| isccc | ||
| isccfg | ||
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| .gitignore | ||
| meson.build | ||