Forum Discussion
DavidW_20496
Nimbostratus
NimbostratusHMAC Question
F5 posted an example for generating an HMAC based on sha256
https://devcentral.f5.com/wiki/iRules.HMAC.ashx
In the line 31 there is
set token [sha256 $opad[sha256 "${ipad}${message}"]]
...
As a note, version 11.1 and above has the CRYPTO::sign iRule command, which provides multiple HMAC algorithms: https://devcentral.f5.com/wiki/iRules.CRYPTO__sign.ashx
