Challenge "Weakened Handycipher — Part 4"  

  By: admin on June 28, 2016, 8:08 p.m.

The Weakened Handycipher challenges serve as an exercise and use an intentionally weakened version of Handycipher. Part 4 is the same as Part 1, but uses an improved version of the cipher. You are given the first 1,009 characters of the plaintext, and some partial information about the key.

Re: Challenge "Weakened Handycipher — Part 4"  

  By: curmudgeon on Aug. 6, 2016, 5:33 p.m.

The following text has been added to the challenge description in order to eliminate an ambiguity:

Remark: The end of each sentence is determined by a letter pair ". " or "? " which
is not part of an ellipsis, an abbreviation, or a quotation attribution.

Re: Challenge  

  By: nicosPavlov on Feb. 7, 2018, 2:35 p.m.

Just in case someone runs into the same problem as me: there is apparently a bug in some python versions, which causes the attached script to fail. It happened with Python version 3.4.7 for me.

It is possible to fix the issue by replacing "string.maketrans" to "str.maketrans" at line 504 of the script.

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