| 1 | | = Design goals = |
| | 1 | = Security Overview = |
| | 2 | * All crucial communication is secured using HTTPG/HTTPS protocols. |
| | 3 | * Only one service (QCG-Computing) must be started with root privileges. However it adheres privilege separation model (similar to OpenSSH), thus actually only a very small amount of code is running with root privileges. Moreover most of the crucial operations (job submission, stage-in/stage-out operations) are performed as target local user so even breaking the service would not give attacker any more privileges that he already has. |
| | 4 | * Any authorization decision is based on provided credentials, not the trust relationship between components. |
| | 5 | * The QosCosGrid stack operation model requires static accounts instead of mapping user credential to a one of pool account (which later might be reused by some other user) thus preventing one user from storing malicious content. |
