here's the source code of my cryptography project
2 parts:
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DES Avalanche Effect DES.c: a simple DES encryption algorithm, with several additional functions related to file operation plot.py: make the graphic analysis result of avalanche effect
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password evaluation evaluation.c: give you a reasonable evaluation to the password you input, details are in the code graph.c: plot the result of the evaluation, the result is represented in a spider graph and two normal distribution graphs.
additional files:
some *.txt files are provided, that's the key and plaintext you need to run the program, of courese you can modify them.
dict.txt needed in password evaluation
data.txt and random.txt needed to plot the normal distribution