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The American Nurses Association (ANA) created and implemented the first nationally accepted Code of Ethics for Nurses with Interpretive Statements. The Code of Ethics is a living document regularly updated by the ANA and establishes an ethical standard that is non-negotiable for nurses in all roles and settings.
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Related Experiment Video

Updated: Sep 26, 2025

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An Efficient and Secure Data Sharing Method Using Asymmetric Pairing with Shorter Ciphertext to Enable Rapid Learning

Snehlata Yadav1, Namita Tiwari1

  • 1Department of Computer Science and Engineering, Maulana Azad National Institute of Technology, Bhopal 462003, India.

Computational Intelligence and Neuroscience
|April 25, 2022
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Summary

This study introduces a secure multichannel broadcast encryption method for efficient and private sharing of sensitive health data, like COVID-19 information, in cloud environments. The proposed system offers enhanced security with shorter ciphertexts using asymmetric pairings.

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Area of Science:

  • Cloud Computing
  • Cryptography
  • Healthcare Informatics

Background:

  • Cloud computing enables flexible, cost-effective real-time data sharing in healthcare.
  • Securely sharing diverse data from multiple users to various subscribers in the cloud is a significant challenge.
  • Existing broadcast encryption systems are inefficient for sensitive data sharing, particularly for scenarios like COVID-19 data privacy.

Purpose of the Study:

  • To propose an efficient and secure data sharing method for cloud-based electronic healthcare systems.
  • To address the challenge of securely sharing sensitive data, such as COVID-19 information, among different user groups.
  • To improve upon standard broadcast encryption by utilizing multichannel broadcast encryption.

Main Methods:

  • Implementation of a secure data sharing method in a public key setting.
  • Utilization of asymmetric (Type-III) pairings for efficiency and security.
  • Security proof based on the decisional BDHE complexity assumption without using a random oracle.

Main Results:

  • The proposed method achieves efficient and secure data sharing.
  • The system generates shorter ciphertexts compared to existing methods.
  • The Type-III pairing setting offers optimal efficiency and security.

Conclusions:

  • The developed multichannel broadcast encryption method provides an efficient and secure solution for data sharing in cloud healthcare.
  • The system enhances data privacy for sensitive information like COVID-19 data.
  • The method is semantically secure and practical for real-world applications.