The idea of the SHA-3 Zoo is to give a good overview of cryptanalytic results. We try to avoid additional judgement whether a submission is broken. The answer to this question is left to NIST. However, we categorize the cryptanalytic results by their impact from very theoretic to practical attacks. A detailed description is given in Cryptanalysis Categories.
At this time, 56 out of 64 submissions to the SHA-3 competition are publicly known and available. 51 submissions have advanced to round 1 and 14 submissions have made it into round 2.
The following table should give a first impression on the remaining SHA-3 candidates. It shows only the best known attack, more detailed results are collected at the individual hash function pages. A description of the main table is given here.
Recent updates of the SHA-3 Zoo
The 5 finalists of the SHA-3 competition are:
| Hash Name | Principal Submitter | Best Attack on Main NIST Requirements | Best Attack on other Hash Requirements |
|---|---|---|---|
| BLAKE | Jean-Philippe Aumasson | ||
| Grøstl | Lars R. Knudsen | ||
| JH | Hongjun Wu | preimage | |
| Keccak | The Keccak Team | ||
| Skein | Bruce Schneier |
The following SHA-3 candidates advanced to round 2 but did not get into the final:
Round 2 tweaks for all candidates
| Hash Name | Principal Submitter | Best Attack on Main NIST Requirements | Best Attack on other Hash Requirements |
|---|---|---|---|
| Blue Midnight Wish | Svein Johan Knapskog | ||
| CubeHash | Daniel J. Bernstein | preimage | |
| ECHO | Henri Gilbert | ||
| Fugue | Charanjit S. Jutla | ||
| Hamsi | Özgül Küçük | ||
| Luffa | Dai Watanabe | ||
| Shabal | Jean-François Misarsky | ||
| SHAvite-3 | Orr Dunkelman | ||
| SIMD | Gaëtan Leurent |
The following submitted hash functions have not advanced to round 2:
| Hash Name | Principal Submitter | Status | Best Attack on Main NIST Requirements | Best Attack on other Hash Requirements |
|---|---|---|---|---|
| Abacus | Neil Sholer | in round 1 | 2nd-preimage | |
| ARIRANG | Jongin Lim | in round 1 | ||
| AURORA | Masahiro Fujita | in round 1 | 2nd preimage | |
| Blender | Colin Bradbury | in round 1 | collision, preimage | near-collision |
| Boole | Greg Rose | in round 1 | collision | |
| Cheetah | Dmitry Khovratovich | in round 1 | length-extension | |
| CHI | Phillip Hawkes | in round 1 | ||
| CRUNCH | Jacques Patarin | in round 1 | length-extension | |
| DCH | David A. Wilson | in round 1 | collision | |
| Dynamic SHA | Xu Zijie | in round 1 | collision | length-extension |
| Dynamic SHA2 | Xu Zijie | in round 1 | collision | length-extension |
| ECOH | Daniel R. L. Brown | in round 1 | 2nd preimage | |
| Edon-R | Danilo Gligoroski | in round 1 | preimage | |
| EnRUPT | Sean O'Neil | in round 1 | collision | |
| ESSENCE | Jason Worth Martin | in round 1 | collision | |
| FSB | Matthieu Finiasz | in round 1 | ||
| HASH 2X | Jason Lee | not in round 1 | 2nd-preimage | |
| Khichidi-1 | M. Vidyasagar | in round 1 | collision | |
| LANE | Sebastiaan Indesteege | in round 1 | ||
| Lesamnta | Hirotaka Yoshida | in round 1 | ||
| LUX | Ivica Nikolić | in round 1 | collision, 2nd preimage | DRBG,HMAC |
| Maraca | Robert J. Jenkins | not in round 1 | preimage | |
| MCSSHA-3 | Mikhail Maslennikov | in round 1 | 2nd preimage | |
| MD6 | Ronald L. Rivest | in round 1 | ||
| MeshHash | Björn Fay | in round 1 | 2nd preimage | |
| NaSHA | Smile Markovski | in round 1 | collision | |
| NKS2D | Geoffrey Park | not in round 1 | collision | |
| Ponic | Peter Schmidt-Nielsen | not in round 1 | 2nd-preimage | |
| SANDstorm | Rich Schroeppel | in round 1 | ||
| Sarmal | Kerem Varıcı | in round 1 | preimage | |
| Sgàil | Peter Maxwell | in round 1 | collision | |
| SHAMATA | Orhun Kara | in round 1 | collision | |
| Spectral Hash | Çetin Kaya Koç | in round 1 | collision | |
| StreamHash | Michal Trojnara | in round 1 | collision | |
| SWIFFTX | Daniele Micciancio | in round 1 | ||
| Tangle | Rafael Alvarez | in round 1 | collision | |
| TIB3 | Daniel Penazzi | in round 1 | collision | |
| Twister | Michael Gorski | in round 1 | preimage | |
| Vortex | Michael Kounavis | in round 1 | preimage | |
| WaMM | John Washburn | in round 1 | collision | |
| Waterfall | Bob Hattersley | in round 1 | collision | |
| ZK-Crypt | Carmi Gressel | not in round 1 |