Name
Abstract | ||
|---|---|---|
This note extends the first-order truncated differentials found by Das, Maitra, and Meier [1] on 2 rounds of the NORX32 permutation. These lead to stronger 2.5-round differential biases for NORX and BLAKE2's permutation, and for 5 rounds of the ChaCha permutation. These biases lead to efficient “inside-out” distinguishers on 4 rounds of the NORX and BLAKE2 permutations, and 8 rounds of the ChaCha permutation. These distinguishers do not directly affect the security claims of NORX, BLAKE2, or ChaCha in their respective modes of operation. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1016/j.ipl.2019.05.001 | Information Processing Letters |
Keywords | Field | DocType |
Cryptography,Distinguisher,NORX,ChaCha,BLAKE2 | Discrete mathematics,Combinatorics,Permutation,Mathematics | Journal |
Volume | ISSN | Citations |
149 | 0020-0190 | 0 |
PageRank | References | Authors |
0.34 | 0 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Samuel Neves | 1 | 112 | 10.86 |
| Filipe Araujo | 2 | 214 | 24.63 |