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Experiments with signing using PyCrypto and M2Crypto. Should be compatible with Boto's signing of CloudFront URLs.

Example run

Specs

Hardware:

  • 1.7 GHz Intel Core i5
  • 4 GB 1333 MHz DDR3

Python:

Python 2.7.2 (default, Dec 30 2011, 18:21:22) 
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)] on darwin

Results

$ python sign.py
rsa1024.pem using m2crypto, crypto:
  EQUAL
running 500 iterations of m2crypto
  took 1.146s
running 500 iterations of crypto
  took 2.682s

rsa2048.pem using m2crypto, crypto:
  EQUAL
running 500 iterations of m2crypto
  took 5.531s
running 500 iterations of crypto
  took 10.623s

Known issues

Signatures differ if non-ascii letters are included.