Adaptable ciphertext-policy attribute-based encryption

• Main Authors: LAI, Junzuo, DENG, Robert H., YANG, Yanjiang, WENG, Jian
• 格式: text
• 語言: English
• 出版: Institutional Knowledge at Singapore Management University 2013
• 主題: Ciphertext; Policy attribute. Based encryption; Adaptability; Policy change; Information Security
• 在線閱讀: https://ink.library.smu.edu.sg/sis_research/1950; https://ink.library.smu.edu.sg/context/sis_research/article/2949/viewcontent/Adaptableciphertext_policyattribute_basedencryption.pdf

In this paper, we introduce a new cryptographic primitive, called adaptable ciphertext-policy attribute-based encryption (CP-ABE). Adaptable CP-ABE extends the traditional CP-ABE by allowing a semi-trusted proxy to modify a ciphertext under one access policy into ciphertexts of the same plaintext un...