#6565: substitution cryptosystems: converting a key from alphabetic to numerical
values
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Reporter: mvngu | Owner: somebody
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-
Component: cryptography | duplicate/invalid/wontfix
Keywords: substitution | Resolution:
cryptosystem | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by tscholl2):
* status: new => needs_review
* milestone: sage-6.4 => sage-duplicate/invalid/wontfix
* upstream: => N/A
Comment:
I think it would be better to add some kind of conversion/coercion for
string monoids instead of specifically for substitution cryptosystem
strings. Also I don't believe there is an ASCII/byte value monoid. In
either case, that would be a different ticket. If someone still wants that
they should open a new ticket.
This is also pretty easy to do by hand if someone wants to. For example,
to take and element from an alphabetic monoid to a list of ascii values
you can use this:
{{{
sage: A = AlphabeticStrings()
sage: a = A.encoding("THISISATURTLE")
sage: map(lambda x: ord(str(x)),a)
[84, 72, 73, 83, 73, 83, 65, 84, 85, 82, 84, 76, 69]
}}}
I'm going to set this as won't fix and give it positive review.
--
Ticket URL: <http://trac.sagemath.org/ticket/6565#comment:6>
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