Efficient certificate-based encryption in the standard model

Joseph K. Liu; Jianying Zhou

doi:10.1007/978-3-540-85855-3_10

Efficient certificate-based encryption in the standard model

Joseph K. Liu, Jianying Zhou

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

47 Citations (Scopus)

Abstract

In this paper, we propose a new Certificate-Based Encryption (CBE) scheme which is fully secure in the standard model. We achieve chosen ciphertext (CCA) security directly without any transformation. When compared to all previous generic constructions (in either random oracle or standard model), our scheme is far more efficient than those schemes. When compared to the CBE scheme in [16] (which is the only concrete implementation secure in the standard model), we enjoy a great improvement in terms of space efficiency. Their scheme requires more than 160 group elements for the public parameters in order to gain an acceptable security. Our scheme just requires 5 group elements. In addition, the message space of our scheme is almost double as the one in [16]. A larger message space implies that it requires a smaller number of encryption operations of the same plaintext, resulting in a smaller overall ciphertext and overhead as well.

Original language	English
Title of host publication	Security and Cryptography for Networks - 6th International Conference, SCN 2008, Proceedings
Pages	144-155
Number of pages	12
DOIs	https://doi.org/10.1007/978-3-540-85855-3_10
Publication status	Published - 25 Sept 2008
Externally published	Yes
Event	Conference on Security and Cryptography for Networks 2008 - Amalfi, Italy Duration: 10 Sept 2008 → 12 Sept 2008 Conference number: 6th

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	5229 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	Conference on Security and Cryptography for Networks 2008
Abbreviated title	SCN 2008
Country/Territory	Italy
City	Amalfi
Period	10/09/08 → 12/09/08

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10.1007/978-3-540-85855-3_10

Cite this

Liu, J. K., & Zhou, J. (2008). Efficient certificate-based encryption in the standard model. In Security and Cryptography for Networks - 6th International Conference, SCN 2008, Proceedings (pp. 144-155). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5229 LNCS). https://doi.org/10.1007/978-3-540-85855-3_10

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abstract = "In this paper, we propose a new Certificate-Based Encryption (CBE) scheme which is fully secure in the standard model. We achieve chosen ciphertext (CCA) security directly without any transformation. When compared to all previous generic constructions (in either random oracle or standard model), our scheme is far more efficient than those schemes. When compared to the CBE scheme in [16] (which is the only concrete implementation secure in the standard model), we enjoy a great improvement in terms of space efficiency. Their scheme requires more than 160 group elements for the public parameters in order to gain an acceptable security. Our scheme just requires 5 group elements. In addition, the message space of our scheme is almost double as the one in [16]. A larger message space implies that it requires a smaller number of encryption operations of the same plaintext, resulting in a smaller overall ciphertext and overhead as well.",

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Liu, JK & Zhou, J 2008, Efficient certificate-based encryption in the standard model. in Security and Cryptography for Networks - 6th International Conference, SCN 2008, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 5229 LNCS, pp. 144-155, Conference on Security and Cryptography for Networks 2008, Amalfi, Italy, 10/09/08. https://doi.org/10.1007/978-3-540-85855-3_10

Efficient certificate-based encryption in the standard model. / Liu, Joseph K.; Zhou, Jianying.
Security and Cryptography for Networks - 6th International Conference, SCN 2008, Proceedings. 2008. p. 144-155 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5229 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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Efficient certificate-based encryption in the standard model

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