TY - JOUR
T1 - Lattice-based certificateless public-key encryption in the standard model
AU - Sepahi, Reza
AU - Steinfeld, Ron
AU - Pieprzyk, Josef
PY - 2014
Y1 - 2014
N2 - The notion of certificateless public-key encryption (CL-PKE) was introduced by Al-Riyami and Paterson in 2003 that avoids the drawbacks of both traditional PKI-based public-key encryption (i.e., establishing public-key infrastructure) and identity-based encryption (i.e., key escrow). So CL-PKE like identity-based encryption is certificate-free, and unlike identity-based encryption is key escrow-free. In this paper, we introduce simple and efficient CCA-secure CL-PKE based on (hierarchical) identity-based encryption. Our construction has both theoretical and practical interests. First, our generic transformation gives a new way of constructing CCA-secure CL-PKE. Second, instantiating our transformation using lattice-based primitives results in a more efficient CCA-secure CL-PKE than its counterpart introduced by Dent in 2008.
AB - The notion of certificateless public-key encryption (CL-PKE) was introduced by Al-Riyami and Paterson in 2003 that avoids the drawbacks of both traditional PKI-based public-key encryption (i.e., establishing public-key infrastructure) and identity-based encryption (i.e., key escrow). So CL-PKE like identity-based encryption is certificate-free, and unlike identity-based encryption is key escrow-free. In this paper, we introduce simple and efficient CCA-secure CL-PKE based on (hierarchical) identity-based encryption. Our construction has both theoretical and practical interests. First, our generic transformation gives a new way of constructing CCA-secure CL-PKE. Second, instantiating our transformation using lattice-based primitives results in a more efficient CCA-secure CL-PKE than its counterpart introduced by Dent in 2008.
UR - http://download.springer.com/static/pdf/228/art%253A10.1007%252Fs10207-013-0215-8.pdf?auth66=1424731986_1f967098e95e0d200d6cef929fceb429&ext=.pdf
U2 - 10.1007/s10207-013-0215-8
DO - 10.1007/s10207-013-0215-8
M3 - Article
VL - 13
SP - 315
EP - 333
JO - International Journal of Information Security
JF - International Journal of Information Security
SN - 1615-5262
IS - 4
ER -