Title of article :
Secure Erasure Code-Based Cloud Storage with Secured Data Forwarding Using Conditional Proxy Re-Encryption (C-PRE)
Author/Authors :
Ramya، S. نويسنده - , , Palanikkumar، D. نويسنده - ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
Cloud computing techniques are used to share
resources. It transfers the application software and databases
to the centralized large data centers. Storing important data
with cloud storage providers comes with serio
us security
risks. The cloud can leak confidential data, modify the data,
or return inconsistent data to different users. So, the cloud
data security requires authentication and integrity analysis
for the storage data values.
A
n
erasure code provides
redun
dancy by breaking objects up into smaller fragments
and storing the fragments in different places. The key is that
you can recover the data from any combination of a smaller
number of t
hose fragments. With
threshold proxy re
-
encrypti
on scheme
(PRE)
,
a dec
entralized erasure code such
that a secure distributed storage system is formulated. The
distributed storage system not only supports secure and
robust data storage and retrieval. It meets the requirements
that storage servers independently perform encodin
g and re
-
encryption and key servers independently perform partial
decryption. The system user forwards his data in the storage
servers to another user without retrieving the data back. A
major feature of the cloud services is that user’s data are
usually p
rocessed remotely in unknown machines that users
do not own or operate.
Conditional Proxy Re
-
Encryption
(C
-
PRE) is proposed, whereby user has a fine
-
grained control
over the delegation. As a result, user can flexibly assign her
delegate, and decryption cap
ability based on the conditions
attached to the messages, using a proxy with no higher trust
than in existing PRE schemes
Journal title :
International Journal of Electronics Communication and Computer Engineering
Journal title :
International Journal of Electronics Communication and Computer Engineering