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学术报告:How to Retrieve Messages from Your Encrypted "Sent" Folder
文章来源:nocode:信息安全国家重点实验室  |  发布时间:2014-06-16  |  【 】 【打印】 【关闭】  |  浏览

题目:How to Retrieve Messages from Your Encrypted "Sent" Folder

报告人:Yuliang Zheng (University of North Carolina at Charlotte, USA) 

 

摘要:

Alice has an important message to be sent to Bob. She can accomplish this by employing Bob's public key to encrypt the message into a ciphertext, followed by emailing Bob the ciphertext. After sending the encrypted message to Bob, Alice's email system dutifully keeps an identical copy of the ciphertext in her "Sent" folder. Some time later Alice finds herself in a position where she needs to recover the message from the ciphertext, without access to Bob's decryption key. In this talk I will explain how the problem above can be solved by the use of public key encryption that allows backward recovery by the sender. I will also discuss techniques that convert traditional public key encryption to include backward recovery so that the security of resultant mechanisms can be formally proven.

报告人简介:

Professor Yuliang Zheng is known as the father of the signcryption technology which is now an international standard for data security. His pioneering research into the application of one-way hash to immunizing public key encryption against adaptive attacks has been embodied in numerous international standards for public key cryptography, including those from ISO, IEEE and IETF. An internationally recognized authority in cryptography and network security, Professor Zheng has published over 200 scholarly articles and books on security and holds a multiple number of patents in cyber security. He plays an active, leadership role in international research communities, serving as the Chair of the Steering Committee of the Public Key Cryptography (PKC) conferences sponsored by the International Association for Cryptologic Research (IACR). In addition, he serves on the steering committees for a number of research and industrial forums including Information Security Conference (ISC), IEEE Information Assurance Standards Committee, and Workshop on Long-Term/Information-Theoretic Security.

 

时间:2012年6月18日(星期一)上午9:30-11:30

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