There are several issues that always occur throughout the sharing of knowledge within the cloud. To unravel this,we use a technology of encoding known as the ciphertext attribute-based encoding which is employed in cloud computing. The files that are being shared on the cloud have the structure hierarchy feature. During this project, we propose the encoding policy supported peculiarity for associate ordered file hierarchy in cloud computing. The files that are present in an exceedingly graded format are encoded in an integrated access structure. The files that are in a serial layer format are combined into one structure that is accessible. This method saves plenty of time and price for the encoding. Below the quality assumption, this projected policy is verified to be secure and safe. Within the encoding and decipherment processes, the expected theme is established to be extremely economical. With the number of files increasing within the cloud because the users keep uploading them, the benefits of the projected theme become additional evident.
Ms.Faiqa Mateen,Mr. Mohammed Khaleel Ahmed and Dr. G.S.S Rao (2017). An Encryption Scheme Based on Peculiarity For an Ordered File Hierarchy in Cloud Computing. International Journal of Computer Engineering In Research Trends, 4(10), 383-387. Retrieved from http://ijcert.org/ems/ijcert_papers/V4I1002.pdf
: Cloud computing, data sharing, file hierarchy, cipher text-policy, attribute-based.
 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.
 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. Secure. Pract.Exper., vol. 8434. May 2014, pp. 346–358.
 K. Liang, J. K. Liu, D. S. Wong, and W. Susilo, “An efficient cloud-based 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.
 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 networks,” in Proc. 19th Eur. Symp. Res. Comput. Secur., vol. 8712. Sep. 2014, pp. 130–147.
 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.
 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.
 J. K. Liu, M. H. Au, X. Huang, R. Lu, and J. Li, “Fine-grained two factor access control for Web-based cloud computing services,” IEEE Trans. Inf. Forensics Security, vol. 11, no. 3, pp. 484–497, Mar. 2016.
 A. Sahai and B. Waters, “Fuzzy identity-based encryption,” in Advances in Cryptology. Berlin, Germany: Springer, May 2005, pp. 457–473.  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.
 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.
 J. Bethencourt, A. Sahai, and B. Waters, “Cipher text-policy attribute based encryption,” in Proc. IEEE Symp.Secur. Privacy, May 2007, pp. 321–334.
 L. Cheung and C. Newport, “Provably secure ciphertext policy ABE,” in Proc. 14th ACM Conf. Comput. Commun.Secur., Oct. 2007, pp. 456–465.
 L. Ibraimi, M. Petkovic, S. Nikova, P. Hartel, and W. Jonker, “Mediated ciphertext-policy attribute-based encryption and its application,” in Proc. 10th Int. Workshop Inf. Secur. Appl., Aug. 2009, pp. 309–323.
 X. Xie, H. Ma, J. Li, and X. Chen, “An efficient ciphertext-policy attribute-based access control towards revocation in cloud computing,” J. Universal Comput. Sci., vol. 19, no. 16, pp. 2349–2367, Oct. 2013.
 F. Guo, Y. Mu, W. Susilo, D. S. Wong, and V. Varadharajan, “CP-ABE with constant-size keys for lightweight devices,” IEEE Trans. Inf. Forensics Security, vol. 9, no. 5, pp. 763–771, May 2014.
 A. Balu and K. Kuppusamy, “An expressive and provably secure ciphertext-policy attribute-based encryption,” Inf. Sci., vol. 276, pp. 354–362, Aug. 2014.
 X. Liu, J. Ma, J. Xiong, and G. Liu, “Ciphertext-policy hierarchical attribute-based encryption for fine-grained access control of encryption data,” Int. J. Netw.Secur., vol. 16, no. 6, pp. 437–443, Nov. 2014.
 Y. Chen, Z. L. Jiang, S. M. Yiu, J. K. Liu, M. H. Au, and X. Wang, “Fully secure ciphertext-policy attribute based encryption with security mediator,” in Proc. 16th Int. Conf. Inf. Commun. Secur., vol. 8958. Dec. 2014, pp. 274–289.
 Y. Yang, J. K. Liu, K. Liang, K.-K. R. Choo, and J. Zhou, “Extended proxy-assisted approach: Achieving revocable fine-grained encryption of cloud data,” in Proc. 20th Eur. Symp. Res. Comput. Secur.(ESORICS), vol. 9327. Sep. 2015, pp. 146–166.
 J. Liu, X. Huang, and J. K. Liu, “Secure sharing of personal health records in cloud computing: Ciphertext-policy attribute-based signcryption,” Future Generat. Comput. Syst., vol. 52, pp. 67–76, Nov. 2015.
 K. Liang et al., “A secure and efficient ciphertext-policy attribute-based proxy re-encryption for cloud data sharing,” Future Generat. Comput. Syst., vol. 52, pp. 95–108, Nov. 2015.
 C.-I. Fan, V. S.-M.Huang, and H.-M. Ruan, “Arbitrary-state attributebased encryption with dynamic membership,” IEEE Trans. Comput., vol. 63, no. 8, pp. 1951–1961, Aug. 2014.
 H. Zheng, Q. Yuan, and J. Chen, “A framework for protecting personal information and privacy,” Secur.Commun.Netw., vol. 8, no. 16, pp. 2867–2874, Nov. 2015.
 F. Xhafa, J. Wang, X. Chen, J. K. Liu, J. Li, and P. Krause, “An efficient PHR service system supporting fuzzy keyword search and fine-grained access control,” Soft Comput., vol. 18, no. 9, pp. 1795–1802, Sep. 2014.
 S. Wang, J. Yu, P. Zhang, and P. Wang, “A novel file hierarchy access control scheme using attribute-based encryption,” Appl. Mech. Mater., vols. 701–702, pp. 911–918, Jan. 2015.
 A.Shekinah Prema Sunaina,” Study on Competent and Revocable Data Access Control Scheme for Multi-Authority Cloud Storage Systems.” International Journal of Computer Engineering in Research Trends., vol.2, no.5, pp. 365-368, 2015.
 R.Srinivas and Ajay Kumar,” Attribute-Based Encryption for Reliable and Secure Sharing of PHR in Cloud Computing.” International Journal of Computer Engineering in Research Trends., vol.2, no.10, pp. 679-682, 2015.
 NUTAKKI PRASAD and K.KIRAN KUMAR,” A Dynamic Secure Multi Owner Data Sharing Scheme Over Cloud Computing.” International Journal of Computer Engineering in Research Trends., vol.2, no.10, pp. 889-895, 2015.
 S.L.SOWJANYA, D.RAVIKIRAN,” Secure Data Sharing for Dynamic Groups in the Public Cloud.” International Journal of Computer Engineering in Research Trends., vol.1, no.6, pp. 428-435, 2014.
 Allam Jyothi,G.Somasekhar and Dr S.Prem Kumar,” A Secure Multi-Owner Data Sharing Scheme for Dynamic Group in Public Cloud.” International Journal of Computer Engineering in Research Trends., vol.2, no.8, pp. 475-480, 2015.