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Paper 2005/180
A Note on Secure Key Issuing in ID-based Cryptography
XU Chunxiang and ZHOU Junhui and QIN Zhiguang
Abstract
Most recently, Lee B. et al proposed a key issuing protocol for ID-based cryptography to solve the key escrow problem. However in this letter, we show that a malicious key generation center (KGC) can successfully attack the protocol to obtain users¡¯ private keys. This means that in the protocol, the key escrow problem isn¡¯t really removed.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- ID-based cryptographyKey escrow problemSecure key issuingKey generation centerKey privacy authority
- Contact author(s)
- chxxu @ uestc edu cn
- History
- 2005-06-15: received
- Short URL
- https://ia.cr/2005/180
- License
-
CC BY