HMAC Calculation - Examples

In Python we can calculate HMAC codes as follows (using the hashlib and hmac libraries):
import hashlib, hmac, binascii
​
def hmac_sha256(key, msg):
  return hmac.new(key, msg, hashlib.sha256).digest()
​
key = b"12345"
msg = b"sample message"
print(binascii.hexlify(hmac_sha256(key, msg)))
Run the above code example: https://repl.it/@nakov/HMAC-SHA256-Examples.
The above code will calculate and print the expected HMAC code (like in our previous example):
ee40ca7bc90df844d2f5b5667b27361a2350fad99352d8a6ce061c69e41e5d32
Try the code yourself and play with it.

HMAC and Key Derivation

Exercises: Calculate HMAC

Last updated 2 years ago