[ python-Bugs-1618455 ] HMAC can get a 6x performance increase easily

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Bugs item #1618455, was opened at 2006-12-18 18:12
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Ben Maurer (bmaurer)
Assigned to: Nobody/Anonymous (nobody)
Summary: HMAC can get a 6x performance increase easily

Initial Comment:
The attached patch increases the performance of HMAC by a factor of 6. It does so by avoiding useing join/map in the strxor and using a lookup table. It would be faster just to do xor at the string level, but it's not clear that can be done without help from C.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1618455&group_id=5470