標題: | Secure key-evolving for public key cryptosystems based on the discrete logarithm problem |
作者: | Lu, CF Shieh, SP 資訊科學與工程研究所 Institute of Computer Science and Engineering |
關鍵字: | provable security;discrete logarithm;key management;key evolving;key independence |
公開日期: | 1-Mar-2004 |
摘要: | This paper addresses the security and efficiency of key-evolving protocols in public key encryption and signature schemes, where the security assumption is the intractability of the discrete logarithm problem. We identify the key-independence property as the security goal of key-evolving, so that each periodic secret key is independent of each other. The first protocol operates in Z(p)* and is efficient for the secret-key holders the second operates in Z(n)*, and is efficient for the public-key holder. For both protocols, we provide proofs and analysis for correctness, security and efficiency. |
URI: | http://hdl.handle.net/11536/26993 |
ISSN: | 1016-2364 |
期刊: | JOURNAL OF INFORMATION SCIENCE AND ENGINEERING |
Volume: | 20 |
Issue: | 2 |
起始頁: | 391 |
結束頁: | 400 |
Appears in Collections: | Conferences Paper |
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