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- W2949134292 startingPage "226" @default.
- W2949134292 abstract "Identity-based encryption (IBE) is a special asymmetric encryption method where a public encryption key can be an arbitrary identifier and the corresponding private decryption key is created by binding the identifier with a system’s master secret. In 2003 Sakai and Kasahara proposed a new IBE scheme, which has the potential to improve performance. However, to our best knowledge, the security of their scheme has not been properly investigated. This work is intended to build confidence in the security of the Sakai-Kasahara IBE scheme. In this paper, we first present an efficient IBE scheme that employs a simple version of the Sakai-Kasahara scheme and the Fujisaki-Okamoto transformation, which we refer to as SK-IBE. We then prove that SK-IBE has chosen ciphertext security in the random oracle model based on a reasonably well-explored hardness assumption." @default.
- W2949134292 created "2019-06-27" @default.
- W2949134292 creator A5024562714 @default.
- W2949134292 creator A5029042665 @default.
- W2949134292 date "2005-01-01" @default.
- W2949134292 modified "2023-09-25" @default.
- W2949134292 title "Security Proof of Sakai-Kasahara's Identity-Based Encryption Scheme." @default.
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