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kgriffs/str_compare_timesafe.py

Created July 4, 2019 04:31
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Compare Entire Strings in a Time-Stable Way to Mitigate Timing Attacks
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str_compare_timesafe.py
def str_compare_timesafe(a, b):
all_chars_match = 0
for c1, c2 in zip(a, b):
all_chars_match |= ord(c1) ^ ord(c2)
return all_chars_match == 0
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