#20611: More functions for mq.SBox and helper to build a Feistel/MISTY
constructed
S-Box
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Reporter: ruhm | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: cryptography | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/ruhm/improved_sbox | 4ed0b5dd1e63614d587f9d3c3408c9489097e874
Dependencies: | Stopgaps:
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Changes (by ruhm):
* cc: malb (added)
Old description:
New description:
This ticket adds some more functions to check the following cryptographic
properties of an S-Box
1.) Determine whether this S-Box is plateaued function
2.) Determine whether the S-Box is bent.
3.) Determine whether the S-Box is an involution.
Plus, I have provided two helper functions for S-Box construction based on
Feistel and MISTY structure. This is quite common to see in some recent
lightweight S-Boxes (see http://eprint.iacr.org/2015/711.pdf).
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Ticket URL: <https://trac.sagemath.org/ticket/20611#comment:8>
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