Unable to obtain security token via SSO

Discussion created by hc5duke1 on Apr 3, 2014
Latest reply on May 1, 2014 by John_Streeter
I work at Yahoo and we use saml based SSO. I'm having some trouble understanding how to get a security token from here: https://rally1.rallydev.com/slm/webservice/v2.0/security/authorize

Using curl and cookie jar, I am able to do all GET api calls (e.g. https://rally1.rallydev.com/slm/webservice/v3.0/hierarchicalrequirement/), but I can't seem to get a security token in order to make POST calls. Since I don't have a Rally based password, I am unable to authenticate myself using the URL above - is there another way to get a security token? Otherwise I'm guessing I need to use API v1.43, which I'd really rather not do since it's deprecated. Thanks.