1. Challenges of Federated Authentication to TeraGrid and Open Science Grid Jim Basney jbasney@illinois.edu

2. Requirements Grid applications: – command-line clients – n-tier workflows – unattended/batch jobs Non-HTTP protocols: – gram, gridftp, ssh Widely distributed user community Strong user identification: – policy requirements from national labs and facilities Federated authentication: – across security domains within and between grids Leverage campus identity providers

3. We need to work with X.509.

4. https://go.teragrid.org/