Scalable and secure sharing of public health record using attribute based Encryption
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This document proposes using attribute-based encryption techniques to securely share personal health records in cloud computing. The objectives are to provide secure patient-centric access to personal health records while efficiently managing access keys. The proposed system encrypts patient health records before outsourcing them to the cloud using attribute-based encryption to guarantee privacy. This addresses challenges with unauthorized access and enables flexible yet secure data access control.
Scalable and secure sharing of public health record using attribute based Encryption
- 1. SCALABLE AND SECURE SHARING OF PERSONAL HEALTH RECORDS IN CLOUD COMPUTING USING ATTRIBUTE BASED ENCRYPTION By Shreyank M. Byadagi Email:[email protected]
- 2. AGENDA: 1. Objectives of project. 2. Problem definition. 3. Literature survey. 4. Methodology. 5. Applications. 6. Implementation carried out. 7. References.
- 3. OBJECTIVES: • The main aim of this system is to provide secure patient- centric PHR access and efficient key management at the same time. • The key idea is to divide the system into multiple security domains according to the different users’ data access requirements.
- 4. PROBLEM DEFINITION: Personal health record(PHR) is meant for health information exchange , this data is outsourced for maintenance like cloud providers. CHALLENGES : • PHR data is prone to unauthorized access. • Access needs to be secure. OUR SOLUTION: • Attribute Based Encryption(ABE) techniques are used to encrypt patient’s PHR file. • A high degree of patient privacy guaranteed.
- 5. LITERATURE SURVEY: • J. Benaloh, proposed a scheme “Patient Controlled Encryption: Ensuring Privacy of Electronic Medical Records,” in which a file can be uploaded without key distribution and it is highly efficient. • J. Hur and D. K. Noh proposed a scheme “Attribute-Based Revocation in Data Outsourcing Systems” with immediate capability, instead of periodical revocation.
- 8. ER-Diagram:
- 9. EXISTING SYSTEM: • Due to the high cost of building and maintaining specialized data centers, many PHR services are outsourced . • The main concern is about whether the patients could actually control the sharing of their sensitive personal health information (PHI), especially when they are stored on a third- party server which people may not fully trust.
- 10. EXISTING SYSTEM(Contd…): Hey, I got it !! Lets modify & send!!!
- 11. PROPOSED SYSTEM: • It is the promising method to encrypt the PHRs before outsourcing. • Risks of privacy exposure , scalability in key management , flexible access are important challenges towards data access control. • Attribute Based Encryption(ABE) techniques are used to encrypt patient’s PHR file.
- 13. ALGORITHMS: • Advanced Encryption Standard(AES) • Message Digest5(MD5)
- 14. ADVANCED ENCRYPTION STANDARD: • Step1:Substitute bytes. • Step2. Shift rows. • Step3. Mix Columns. • Step4. Add Round Key
- 16. Contd….
- 20. MESSAGE DIGEST5(MD5): • Step1: Append padding bits: Message is pad so its length is 448 mod 512 • Step2: Append Length Append a 64-bit length value to message Generate a message with 512 bits in length • Step3: Initialize MD buffer Initialize a 4-word (128-bit) MD buffer (A, B, C, D) Word A: 01 23 45 67 Word B: 89 AB CD EF Word C: FE DC BA 98 Word D: 76 54 32 10 • Step4: Process Message in 16-word block Process message in 16- word (512-bit) blocks • Step5: Output
- 21. Difference B/W: Existing System: 1. Expensive to maintain many PHR services. 2. Patient rejects to share his PHI as it is stored in third party server. Proposed System: 1. Inexpensive to create and maintain PHR services. 2. Patient shares his PHI as it is encrypted using ABE technique before it is stored in third party server.
- 23. APPLICATIONS: • Hospital Management. • Health Care Website.
- 24. MODULES: • PHR Owner module • Cloud Server Module • Attribute based Access Policy Module • Data confidentiality Module Front end of our project is prepared with the help of JSP.
- 25. REQUIREMENTS: HARDWARE REQUIREMENTS:- • Processor - Pentium –III • 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
- 26. REQUIREMENTS(CONTD..) SOFTWARE REQUIREMENTS:- • Operating System : Windows95/98/2000/XP • TOOL USED : ECLIPSE • Front End : JAVA
- 27. REFERENCES: • M. Li, S. Yu, K. Ren, and W. Lou, “Securing personal health records in cloud computing: Patient-centric and fine-grained data access control in multi-owner settings”. • H. Lohr, A.-R. Sadeghi, and M. Winandy, “Securing the e- health cloud”. • “The health insurance portability and accountability act”.
- 29. THANK YOU!!!!