Efficient unidirectional proxy re-encryption

• Main Authors: CHOW, Sherman, JIAN, Weng, YANG, Yanjiang, DENG, Robert H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2010
• Subjects: proxy re-encryption; unidirection; chosen-ciphertext attack; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/1316; https://ink.library.smu.edu.sg/context/sis_research/article/2315/viewcontent/2009_189.pdf
• Institution: Singapore Management University

Proxy re-encryption (PRE) allows a semi-trusted proxy to convert a ciphertext originally intended for Alice into one encrypting the same plaintext for Bob. The proxy only needs a re-encryption key given by Alice, and cannot learn anything about the plaintext encrypted. This adds flexibility in vario...