Volume & Issue no: Volume 3, Issue 4, July - August 2014
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Title: |
Hybrid Attribute Based Encryption |
Author Name: |
GD Makkar, Vivek Panwar |
Abstract: |
Abstract
Now a day, cloud computing has become a significant
technology trend. The cloud computing technology benefits
include cost savings, high availability of resources, and easy
scalability. The cloud computing provides many services to the
users. These are Software as a Service, Platform as a Service
and Infrastructure as a Service. For any enterprise, data plays
a significant role in its growth. Cloud computing also provides
the facility to the enterprises to store their valuable data
remotely at cloud. One of the main hurdles that disallow the
use of cloud computing is the security of data in the cloud as
the users have no physical contact with the data. The only way
to secure the data in the cloud is encrypting the data before
storing it. The threat to the data stored in the cloud is not only
from the intruders outside of the organization but also from
the malicious users inside the cloud service provider who have
inherently access to the databases. The only possible solution
to protect our private and confidential data on the cloud is to
encrypt it before storage. There are many schemes are
proposed and used in the past ranging from Identity Based
Encryption (IDE), Fuzzy Attribute Based Encryption (Fuzzy
ABE), Key-Policy Attribute Based Encryption (KP-ABE) to
Cipher-Policy Attribute Based Encryption (CP-ABE). One
problem with KP-ABE and CP-ABE is that both use single
trusted authority. Data owner is only trusted authority. It can
be bottlenecked. In our approach, we used the hybrid Attribute
Based Encryption (HbABE) where we combine scheme KPABE
and CP-ABE and use the concept of access structure that
defines which users can decrypt the data. In our scheme, we
used two tree structures, one used as access structure and the
other is used as a private key. HbABE is specifically designed
for the company to be used internally purpose not for the
public use. It provides the security at three levels, first, using
symmetric data encryption, second KP-ABE & CP-ABE and
third using the biometric identity. Its purpose is to fully secure
the company’s file both from outside as well as inside
intruders.
Keywords: Cloud computing security, encryption, ABE,
KP-ABE, CP-ABE. |
Cite this article: |
GD Makkar, Vivek Panwar , "
Hybrid Attribute Based Encryption " , International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) ,
Volume 3, Issue 4, July - August 2014 , pp.
238-243 , ISSN 2278-6856.
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