HMAC(alg, str, key)

HMAC message authentication code.

Syntax

HMAC(alg, str, key);

Arguments

Name	Description
alg	A string which specifies the type of hashing algorithms to use, must be MD5, SHA1, SHA256, SHA384, SHA512.
str	A string which will be calculated.
key	A string which is a secret key.

Events

Applicable in all events.

Example

when HTTP_REQUEST {
alg = "MD5"; -- or "SHA1", "SHA256", "SHA384", "SHA512"
data = "your data"
key  = "123456789ABCDEF0123456789ABCDEF\121"; -- or you can generate a key using key_gen
re = HMAC(alg, data, key);
debug("the HMAC in hex is %s\n", to_HEX(re));
}

Supported Version

FortiADC version 5.2.x and later.