Secure Certi¯cateless Encryption with ShortCiphertext
-
Graphical Abstract
-
Abstract
Certi¯cateless public key cryptography was
introduced to solve the key escrow problem in identity
based cryptography while enjoying the most attractive cer-
ti¯cateless property. In this paper, we present a secure
Certi¯cateless encryption (CLE) scheme with short cipher-
text. The ciphertext length is at least jmj-bit (the length
of a plaintext) shorter than the existing CLE schemes
while retaining similar e±ciency of computation. The new
scheme is provably secure against adaptive chosen cipher-
text attacks in the random oracle model.
-
-
DownLoad: