#7124: affine cipher and its cryptanalysis
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Reporter: mvngu | Owner: somebody
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.2
Component: cryptography | Keywords: affine cipher
Work_issues: | Author: Minh Van Nguyen
Reviewer: | Merged:
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Changes (by rbeezer):
* status: needs_review => needs_work
Comment:
Minh,
Some specific comments:
1. In {{{AffineCryptoSystem}}} there are comments about the list L which
can probably be deleted.
2. In {{{__call__}}} the sanity check computes d and checks d == 1. This
could be removed if you trust your {{{_invertible}}} list.
3. Docstring on {{{inverse_key}}} has an odd test about euler_phi=12, a
list of invertibles is computed, etc. Not sure this is really germane.
Rob
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7124#comment:15>
Sage <http://www.sagemath.org>
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