AN EFFICIENT FILE HIERARCHY ATTRIBUTE-BASED ENCRYPTION SCHEME IN CLOUD COMPUTING,bulk ieee projects
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The document presents a new encryption scheme for cloud computing called file hierarchy ciphertext-policy attribute-based encryption (fh-cp-abe), which effectively manages the sharing of hierarchical files. This scheme integrates layered access structures, optimizing both storage and encryption time, and proves to be secure against chosen plaintext attacks. Experimental results indicate that as the number of files increases, the efficiency and advantages of the proposed method become more pronounced.
![CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249)
MAIL ID: sunsid1989@gmail.com, praveen@nexgenproject.com
Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com
and fine-grained access control. The contributions of our scheme are three
aspects.
• Firstly, we propose the layered model of access structure to solve the
problem of multiple hierarchical files sharing. The files are encrypted with one
integrated access structure.
• Secondly, we also formally prove the security of FH-CP-ABE scheme that can
successfully resist chosen plaintext attacks (CPA) under the Decisional Bilinear
Diffie-Hellman (DBDH) assumption.
• Thirdly, we conduct and implement comprehensive experiment for FH-CP-
ABE scheme, and the simulation results show that FH-CP-ABE has low storage
cost and computation complexity in terms of encryption and decryption. It
should be noticed that the proposed scheme differs from the subsequent CP-
ABE schemes, which utilize the user layered model to distribute the work of
key creation on multiple domain authorizations and lighten the burden of key
authority center. In addition, the part of this work is presented in [25]. The
work presented in that conference paper is rough and incomplete, where
some important aspects haven’t been considered.
CONCLUSIONS
In this paper, 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](https://image.slidesharecdn.com/anefficientfilehierarchyattribute-160721144410/85/AN-EFFICIENT-FILE-HIERARCHY-ATTRIBUTE-BASED-ENCRYPTION-SCHEME-IN-CLOUD-COMPUTING-bulk-ieee-projects-3-320.jpg)
![CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249)
MAIL ID: sunsid1989@gmail.com, praveen@nexgenproject.com
Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com
attributes could be shared by the files. Therefore, both cipher text 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. Thus,
the time cost of decryption is also saved if the user needs to decrypt multiple
files. Moreover, the proposed scheme is proved to be secure under DBDH
assumption.
REFERENCES
[1] C.-K. Chu, W.-T. Zhu, J. Han, J.-K. Liu, J. Xu, and J. Zhou, “Security concerns
in popular cloud storage services,” IEEE Pervasive Comput., vol. 12, no. 4, pp.
50–57, Oct./Dec. 2013.
[2] T. Jiang, X. Chen, J. Li, D. S. Wong, J. Ma, and J. Liu, “TIMER: Secure and
reliable cloud storage against data re-outsourcing,” in Proc. 10th Int. Conf. Inf.
Secur. Pract. Exper., vol. 8434. May 2014, pp. 346–358.
[3] K. Liang, J. K. Liu, D. S. Wong, and W. Susilo, “An efficient cloudbased
revocable identity-based proxy re-encryption scheme for public clouds data
sharing,” in Proc. 19th Eur. Symp. Res. Comput. Secur., vol. 8712. Sep. 2014, pp.
257–272.
[4] T. H. Yuen, Y. Zhang, S. M. Yiu, and J. K. Liu, “Identity-based encryption with
post-challenge auxiliary inputs for secure cloud applications and sensor](https://image.slidesharecdn.com/anefficientfilehierarchyattribute-160721144410/85/AN-EFFICIENT-FILE-HIERARCHY-ATTRIBUTE-BASED-ENCRYPTION-SCHEME-IN-CLOUD-COMPUTING-bulk-ieee-projects-4-320.jpg)
![CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249)
MAIL ID: sunsid1989@gmail.com, praveen@nexgenproject.com
Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com
networks,” in Proc. 19th Eur. Symp. Res. Comput. Secur., vol. 8712. Sep. 2014,
pp. 130–147.
[5] K. Liang et al., “A DFA-based functional proxy re-encryption scheme for
secure public cloud data sharing,” IEEE Trans. Inf. Forensics Security, vol. 9, no.
10, pp. 1667–1680, Oct. 2014.
[6] T. H. Yuen, J. K. Liu, M. H. Au, X. Huang, W. Susilo, and J. Zhou, “k-times
attribute-based anonymous access control for cloud computing,” IEEE Trans.
Comput., vol. 64, no. 9, pp. 2595–2608, Sep. 2015.
[7] J. K. Liu, M. H. Au, X. Huang, R. Lu, and J. Li, “Fine-grained twofactor access
control for Web-based cloud computing services,” IEEE Trans. Inf. Forensics
Security, vol. 11, no. 3, pp. 484–497, Mar. 2016.
[8] A. Sahai and B. Waters, “Fuzzy identity-based encryption,” in Advances in
Cryptology. Berlin, Germany: Springer, May 2005, pp. 457–473.
[9] V. Goyal, O. Pandey, A. Sahai, and B. Waters, “Attribute-based encryption
for fine-grained access control of encrypted data,” in Proc. 13th
ACM Conf.
Comput. Commun. Secur., Oct. 2006, pp. 89–98.
[10] W. Zhu, J. Yu, T. Wang, P. Zhang, and W. Xie, “Efficient attribute-based
encryption from R-LWE,” Chin. J. Electron., vol. 23, no. 4, pp. 778–782, Oct.
2014.](https://image.slidesharecdn.com/anefficientfilehierarchyattribute-160721144410/85/AN-EFFICIENT-FILE-HIERARCHY-ATTRIBUTE-BASED-ENCRYPTION-SCHEME-IN-CLOUD-COMPUTING-bulk-ieee-projects-5-320.jpg)
AN EFFICIENT FILE HIERARCHY ATTRIBUTE-BASED ENCRYPTION SCHEME IN CLOUD COMPUTING,bulk ieee projects
- 1. CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249) MAIL ID: [email protected], [email protected] Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com AN EFFICIENT FILE HIERARCHY ATTRIBUTE-BASED ENCRYPTION SCHEME IN CLOUD COMPUTING ABSTRACT: Cipher text-policy attribute-based encryption (CP-ABE) has been a preferred encryption technology to solve the challenging problem of secure data sharing in cloud computing. The shared data files generally have the characteristic of multilevel hierarchy, particularly in the area of healthcare and the military. However, the hierarchy structure of shared files has not been explored in CP- ABE. In this paper, an efficient file hierarchy attribute-based encryption scheme is proposed in cloud computing. The layered access structures are integrated into a single access structure, and then, the hierarchical files are encrypted with the integrated access structure. The ciphertext components related to attributes could be shared by the files. Therefore, both ciphertext storage and time cost of encryption are saved. Moreover, the proposed scheme is proved to be secure under the standard assumption. Experimental simulation shows that the proposed scheme is highly efficient in terms of encryption and decryption. With the number of the files increasing, the advantages of our scheme become more and more conspicuous.
- 2. CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249) MAIL ID: [email protected], [email protected] Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com EXISTING SYSTEM: Sahai and Waters proposed fuzzy Identity-Based Encryption (IBE) in 2005, which was the prototype of ABE. Latterly, a variant of ABE named CP-ABE was proposed Since Gentry and Silverberg proposed the first notion of hierarchical encryption scheme, many hierarchical CP-ABE schemes have been proposed. For example, Wang et al. proposed a hierarchical ABE scheme by combining the hierarchical IBE and CP-ABE. Wan et al. proposed hierarchical ABE scheme. Later, Zou gave a hierarchical ABE scheme, while the length of secret key is linear with the order of the attribute set. A ciphertextpolicy hierarchical ABE scheme with short ciphertext is also studied. In these schemes, the parent authorization domain governs its child authorization domains and a top-level authorization domain creates secret key of the next-level domain. The work of key creation is distributed on multiple authorization domains and the burden of key authority center is lightened. PROPOSED SYSTEM: In this project, an efficient encryption scheme based on layered model of the access structure is proposed in cloud computing, which is named file hierarchy CP-ABE scheme (or FH-CP-ABE, for short). FH-CP-ABE extends typical CP-ABE with a hierarchical structure of access policy, so as to achieve simple, flexible
- 3. CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249) MAIL ID: [email protected], [email protected] Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com and fine-grained access control. The contributions of our scheme are three aspects. • Firstly, we propose the layered model of access structure to solve the problem of multiple hierarchical files sharing. The files are encrypted with one integrated access structure. • Secondly, we also formally prove the security of FH-CP-ABE scheme that can successfully resist chosen plaintext attacks (CPA) under the Decisional Bilinear Diffie-Hellman (DBDH) assumption. • Thirdly, we conduct and implement comprehensive experiment for FH-CP- ABE scheme, and the simulation results show that FH-CP-ABE has low storage cost and computation complexity in terms of encryption and decryption. It should be noticed that the proposed scheme differs from the subsequent CP- ABE schemes, which utilize the user layered model to distribute the work of key creation on multiple domain authorizations and lighten the burden of key authority center. In addition, the part of this work is presented in [25]. The work presented in that conference paper is rough and incomplete, where some important aspects haven’t been considered. CONCLUSIONS In this paper, 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
- 4. CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249) MAIL ID: [email protected], [email protected] Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com attributes could be shared by the files. Therefore, both cipher text 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. Thus, the time cost of decryption is also saved if the user needs to decrypt multiple files. Moreover, the proposed scheme is proved to be secure under DBDH assumption. REFERENCES [1] C.-K. Chu, W.-T. Zhu, J. Han, J.-K. Liu, J. Xu, and J. Zhou, “Security concerns in popular cloud storage services,” IEEE Pervasive Comput., vol. 12, no. 4, pp. 50–57, Oct./Dec. 2013. [2] T. Jiang, X. Chen, J. Li, D. S. Wong, J. Ma, and J. Liu, “TIMER: Secure and reliable cloud storage against data re-outsourcing,” in Proc. 10th Int. Conf. Inf. Secur. Pract. Exper., vol. 8434. May 2014, pp. 346–358. [3] K. Liang, J. K. Liu, D. S. Wong, and W. Susilo, “An efficient cloudbased revocable identity-based proxy re-encryption scheme for public clouds data sharing,” in Proc. 19th Eur. Symp. Res. Comput. Secur., vol. 8712. Sep. 2014, pp. 257–272. [4] T. H. Yuen, Y. Zhang, S. M. Yiu, and J. K. Liu, “Identity-based encryption with post-challenge auxiliary inputs for secure cloud applications and sensor
- 5. CONTACT: PRAVEEN KUMAR. L (, +91 – 9791938249) MAIL ID: [email protected], [email protected] Web: www.nexgenproject.com, www.finalyear-ieeeprojects.com networks,” in Proc. 19th Eur. Symp. Res. Comput. Secur., vol. 8712. Sep. 2014, pp. 130–147. [5] K. Liang et al., “A DFA-based functional proxy re-encryption scheme for secure public cloud data sharing,” IEEE Trans. Inf. Forensics Security, vol. 9, no. 10, pp. 1667–1680, Oct. 2014. [6] T. H. Yuen, J. K. Liu, M. H. Au, X. Huang, W. Susilo, and J. Zhou, “k-times attribute-based anonymous access control for cloud computing,” IEEE Trans. Comput., vol. 64, no. 9, pp. 2595–2608, Sep. 2015. [7] J. K. Liu, M. H. Au, X. Huang, R. Lu, and J. Li, “Fine-grained twofactor access control for Web-based cloud computing services,” IEEE Trans. Inf. Forensics Security, vol. 11, no. 3, pp. 484–497, Mar. 2016. [8] A. Sahai and B. Waters, “Fuzzy identity-based encryption,” in Advances in Cryptology. Berlin, Germany: Springer, May 2005, pp. 457–473. [9] V. Goyal, O. Pandey, A. Sahai, and B. Waters, “Attribute-based encryption for fine-grained access control of encrypted data,” in Proc. 13th ACM Conf. Comput. Commun. Secur., Oct. 2006, pp. 89–98. [10] W. Zhu, J. Yu, T. Wang, P. Zhang, and W. Xie, “Efficient attribute-based encryption from R-LWE,” Chin. J. Electron., vol. 23, no. 4, pp. 778–782, Oct. 2014.