Python: Add tests of hmac

Author: RasmusWL

python/ql/test/library-tests/frameworks/stdlib/test_hmac.py

@@ -0,0 +1,33 @@
+import hmac
+import hashlib
+
+key = b"<secret key>"
+
+hmac_obj = hmac.new(key, b"secret message", "sha256") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(hmac_obj.digest())
+print(hmac_obj.hexdigest())
+
+hmac_obj = hmac.new(key, msg=b"secret message", digestmod="sha256") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(hmac_obj.hexdigest())
+
+
+hmac_obj = hmac.new(key, digestmod="sha256")
+hmac_obj.update(b"secret") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret" CryptographicOperationAlgorithm=SHA256
+hmac_obj.update(msg=b" message") # $ MISSING: CryptographicOperation CryptographicOperationInput=b" message" CryptographicOperationAlgorithm=SHA256
+print(hmac_obj.hexdigest())
+
+
+hmac_obj = hmac.new(key, b"secret message", hashlib.sha256) # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(hmac_obj.hexdigest())
+
+
+# like hmac.new
+hmac_obj = hmac.HMAC(key, digestmod="sha256")
+hmac_obj.update(b"secret message") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(hmac_obj.hexdigest())
+
+
+dig = hmac.digest(key, b"secret message", "sha256") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(dig)
+dig = hmac.digest(key, msg=b"secret message", digest="sha256") # $ MISSING: CryptographicOperation CryptographicOperationInput=b"secret message" CryptographicOperationAlgorithm=SHA256
+print(dig)