I would like to know how to recognize the ASCII binary codes of a string as integers values. Look at the following example.
sage: from sage.crypto.util import ascii_to_bin
sage: ascii_to_bin('Hi')
0100100001101001
sage: ascii_to_bin('Hi')[4]
1
sage: ascii_to_bin('Hi')[4] in ZZ
False
sage:
I would be thankful if I get some tips on how to identify the binary digits as integers.
You can make a conversion:
sage: b = ascii_to_bin('Hi')[4]
sage: b
1
Unfortunately, there is no direct conversion to ZZ:
sage: ZZ(b)
TypeError: unable to coerce <class 'sage.monoids.string_monoid_element.StringMonoidElement'> to an integer
but you can first make b a string an then an integer:
sage: a = ZZ(str(b)) ; a
1
sage: a.parent()
Integer Ring
Asked: 2020-06-02 10:18:35 +0200
Seen: 123 times
Last updated: Jun 02 '20
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