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Modeling for Three-Subset Division Property Without Unknown Subset - Improved Cube Attacks
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- 1 Intro
- 2 Overview Cube attack[DS09] : Variant of higher-order differential attacks.
- 3 Results from our new algorithm Degeneration results
- 4 Stream ciphers
- 5 History of cube attacks 1st generation [DS09]
- 6 What assumptions are required in the 2nd gen?NTT [TIHM17] used the bit-based division property.
- 7 Idea of 3rd gen. cube attack • The preliminary idea was introduced in WHGZS19 .
- 8 Path search based on division trail Goal is to check if f(x) has the monomial x or not.
- 9 Three-subset division property • We need to use two different propagations.
- 10 MILP-unfriendly property Three-subset division property is unfriendly with MILP.
- 11 Three-subset division property w/o unknown NTT
- 12 The new modeling
- 13 Cube attack against Trivium 839-round key recovery attack WHTLIM 18 .
- 14 Summary of applications
