Abstract
We present a proxy cryptosystem based on a certificate-based encryption scheme. The proposed scheme inherits the merits of certificate-based encryption systems: no-key-escrow and implicit certification. In addition, the proposed scheme allows the proxy’s decryption power to be revoked even during the valid period of the proxy key without changing the original decryptor’s public information. Few proxy schemes have this property, and ours is more efficient than the existing ones. We show that our proposal is IND-CBPd-Rev-CCA secure under the bilinear Diffie-Hellman assumption in the random oracle model.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Boneh, D., Boyen, X.: Secure identity based encryption without random oracles. In: Franklin, M. (ed.) CRYPTO 2004. LNCS, vol. 3152, pp. 443–459. Springer, Heidelberg (2004)
Boneh, D., Franklin, M.: Identity-based encryption from the Weil pairing. In: Kilian, J. (ed.) CRYPTO 2001. LNCS, vol. 2139, pp. 213–229. Springer, Heidelberg (2001)
Boneh, D., Gentry, C., Lynn, B., Shacham, H.: Aggregate and verifiably encrypted signatures from bilinear maps. In: Biham, E. (ed.) EUROCRPYT 2003. LNCS, vol. 2656, pp. 416–432. Springer, Heidelberg (2003)
Boneh, D., Lynn, B., Shacham, H.: Short signatures from the Weil pairing. In: Boyd, C. (ed.) ASIACRYPT 2001. LNCS, vol. 2248, pp. 514–532. Springer, Heidelberg (2001)
Fujisaki, E., Okamoto, T.: Secure integration of asymmetric and symmetric encryption schemes. In: Wiener, M.J. (ed.) CRYPTO 1999. LNCS, vol. 1666, pp. 537–554. Springer, Heidelberg (1999)
Gentry, C.: Certificate-based encryption and the certificate revocation problem. In: Biham, E. (ed.) EUROCRPYT 2003. LNCS, vol. 2656, pp. 272–293. Springer, Heidelberg (2003)
Mambo, M., Okamoto, E.: Proxy cryptosystem: Delegation of the power to decrypt ciphertexts. IEICE Trans. Fundamentals E80-A(1), 54–63 (1997)
Mu, Y., Varadharajan, V., Nguyen, K.Q.: Delegation decryption. In: Walker, M. (ed.) IMA - Crypto & Coding 1999. LNCS, vol. 1746, pp. 258–269. Springer, Heidelberg (1999)
Sakai, R., Ohgishi, K., Kasahara, M.: Cryptosystems based on pairing, SCIS2000-C20 (2000)
Sarkar, P.: HEAD: hybrid encryption with delegated decryption capbility. In: Canteaut, A., Viswanathan, K. (eds.) INDOCRYPT 2004. LNCS, vol. 3348, pp. 230–244. Springer, Heidelberg (2004)
Wang, L., Cao, Z., Okamoto, E., Miao, Y., Okamoto, T.: Transformation-free proxy cryptosystems and their applications to electronic commerce. In: Proceeding of International Conference on Information Security (InfoSecu 2004), pp. 92–98. ACM Press, New York (2004)
Wang, L., Cao, Z., Okamoto, T., Miao, Y., Okamoto, E.: Authorization-limited transformation-free proxy cryptosystems and their security analyses. IEICE Trans. Fundamentals E89-A(1), 106–114 (2006)
Waters, B.: Efficient identity-based encryption without random oracles. In: Cramer, R.J.F. (ed.) EUROCRYPT 2005. LNCS, vol. 3494, pp. 114–127. Springer, Heidelberg (2005)
Zhou, Y., Cao, Z., Chai, Z.: Constructing Secure Proxy Cryptosystem. In: Feng, D., Lin, D., Yung, M. (eds.) CISC 2005. LNCS, vol. 3822, pp. 150–161. Springer, Heidelberg (2005)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2007 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Wang, L., Shao, J., Cao, Z., Mambo, M., Yamamura, A. (2007). A Certificate-Based Proxy Cryptosystem with Revocable Proxy Decryption Power. In: Srinathan, K., Rangan, C.P., Yung, M. (eds) Progress in Cryptology – INDOCRYPT 2007. INDOCRYPT 2007. Lecture Notes in Computer Science, vol 4859. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77026-8_22
Download citation
DOI: https://doi.org/10.1007/978-3-540-77026-8_22
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-77025-1
Online ISBN: 978-3-540-77026-8
eBook Packages: Computer ScienceComputer Science (R0)