hmac — Cryptographic Message Signing and Verification — PyMOTW 3

The HMAC algorithm can be used to verify the integrity of information passed between applications or stored in a potentially vulnerable location. The basic idea is to generate a cryptographic hash of the actual data combined with a shared secret key. The resulting hash can then be used to check the transmitted or stored message to determine a level of trust, without transmitting the secret key.

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This post is part of the Python Module of the Week series for Python 3. See for more articles from the series.