Efficient fuzzy attribute-based signcryption scheme
Multi-user communication is the major model of present information exchange and to improve communication security and to solve the problem of communication efficiency is the key of present research. Attributed-based signcryp-tion ensures the confidentiality and integrity of the information during co...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2013-08-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.z1.002/ |
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| Summary: | Multi-user communication is the major model of present information exchange and to improve communication security and to solve the problem of communication efficiency is the key of present research. Attributed-based signcryp-tion ensures the confidentiality and integrity of the information during communication and realizes the sending of infor-mation through one-step operation, thus improving the efficiency of signcryption. By using secret sharing model and bi-linear pairs, an efficient fuzzy attribute-based signcryption scheme was presented, and based on DMBDH and CDH prob-lem, the confidentiality and unforgeability of the scheme were proved. Meanwhile, it meets public verifiability and short ciphertext. Compared with other analysis, the amount of computation of signcryption and designcryption is only (n+3)e and ne+(n+4)p, far less than those of other similar schemes and this realizes the efficiency of computation. |
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| ISSN: | 1000-436X |