4 kyu
Implementing SHA-1
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Cryptography
Algorithms
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I don't understand the purpose of the 'update' method (python).
Is this were the SHA1 padding/preprocessing is to take place?
Basically everything you need to do:
After calling the update(message) method, you update the variable inside the class. When digest() is called, you work with this previously saved variable. I checked, scripts of multiple calls to update() are not tested. For a single instance of a class, the update() method is called once. p.s. Judging by your code, you are on the right track.
Python fork with B4B's anticheat
The kata does not mention what should be done if the last chunk is more than 448 bits long
Do I remove the end bits or do I add a new chunk?
So for posterity, what you're supposed to do is pad the message with zeroes until
bitlen(message) == 448 (mod 512).This comment has been hidden.
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Actually, I'll merge and and see if anyone breaks it again.
this was fun & I learned a lot! nice kata
another one to do later, is it broken or is hashlib not allowed and just not mentioned in the description