An Efficient File Hierarchy Attribute Based Encryption Scheme in Cloud Computing

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An Efficient File Hierarchy Attribute Based Encryption Scheme in Cloud Computing

An Efficient File Hierarchy Attribute Based Encryption Scheme in Cloud Computing

Abstract

Ciphertext-policy attribute-based encryption (CP-ABE) has been a preferred encryption technology to solve the challenging problem of secure data sharing in cloud computing. An Efficient File Hierarchy Attribute Based Encryption Scheme in Cloud Computing The shared data files generally have the characteristic of multilevel hierarchy, particularly in the area of healthcare and the military.
An Efficient File Hierarchy Attribute Based Encryption Scheme in Cloud Computing Experimental simulation shows the proposed scheme is highly efficient in terms of encryption and decryption. As the number of files increases, the benefits of our scheme are becoming increasingly visible.

System Configuration

H/W System Configuration
Speed                   : 1.1 GHz
RAM                      : 256 MB(min)
Hard Disk              : 20 GB
Floppy Drive          : 1.44 MB
Key Board             : Standard Windows Keyboard
Mouse                  : Two or Three Button Mouse
Monitor                : SVGA
S/W System Configuration

Platform                     :  cloud computing

Operating system       : Windows Xp,7,
Server                       : WAMP/Apache
Working on                : Browser Like Firefox, IE

Conclusion

We proposed a variant of CP-ABE to efficiently share the hierarchical files in cloud computing. The hierarchical files are encrypted with an integrated access structure and the ciphertext components related to attributes could be shared by the files. Therefore, both ciphertext storage and time cost of encryption are saved. The proposed scheme has an advantage that users can decrypt all authorization files by computing secret key once.