Fine-Grain Access Control Using Shibboleth for the Storage Resource Broker

Author(s):  
Vineela Muppavarapu ◽  
Soon M. Chung
2012 ◽  
Vol 21 (4) ◽  
pp. 692-701 ◽  
Author(s):  
F. Amato ◽  
V. Casola ◽  
N. Mazzocca ◽  
S. Romano

Author(s):  
Ayman Haggag ◽  
◽  
Mohamed Ghoneim ◽  
Jianming Lu ◽  
Takashi Yahagi ◽  
...  

The access control and scalable encryption scheme we propose for JPEG 2000 encoded images encrypts JEPG 2000 codestreams using the SNOW 2 progressive encryption algorithm to encrypt resolutions, quality layers, or packets independently to provide resolution, quality or fine-grain scalability. Access is controlled to different image resolutions or quality levels granted to different users receiving the same encrypted JPEG 2000 codestream but having different decryption keys. Keys used with successive resolutions or quality layers are mutually dependent based on the SHA-256 one-way hashing function. Encrypted JPEG 2000 codestreams are transcoded by an intermediate untrusted network transcoder, without decryption and without access to decryption keys. Our encryption scheme preserves most of the inherent flexibility of JPEG 2000 encoded images and is carefully designed to produce encrypted codestreams backward-compatible with JPEG 2000 compliant decoders.


Author(s):  
Pramod P Pillai ◽  
Venkataratnam P. ◽  
Siva Yellampalli

Cloud computing is becoming a de facto standard for most of the emerging technology solutions. In a typical cloud environment, various tenants purchase the compute, storage resource, and would be sharing the resource with other tenants. Sharing of the resources among various tenants is not popular due to the security concerns. There are few solutions that try to solve the security problem of resource sharing among tenants. Having a trusted mediator between multiple tenants is one of the methods. Few research papers have been written, and this chapter attempts to enhance one of the published solutions: Cross-tenant access control model for cloud computing. Most of the existing research papers explore the theoretical way to solve the problem. This project develops a working prototype and proves how resource sharing can be achieved. This research develops the concept of resource sharing activation, where the resource can be shared with multiple cloud tenant and the deactivation where the shared resources can be removed from the shared resource pool.


Sign in / Sign up

Export Citation Format

Share Document