Header menu link for other important links
X
Compact stateful encryption schemes with ciphertext verifiability
S. Sharmila Deva Selvi,
Published in Springer Verlag
2012
Volume: 7631 LNCS
   
Pages: 87 - 104
Abstract
Increasingly wider deployment of encryption schemes call for schemes possessing additional properties such as randomness re-use, compactness and ciphertext verifiability. While novel approaches such as stateful encryption schemes contributes for randomness re-use (to save computational efforts), the requirements such as ciphertext verifiability leads to increase in the size of ciphertext. Thus, it is interesting and challenging to design stateful encryption schemes that offer ciphertext verifiability and result in compact ciphertexts. We propose two new stateful public key encryption schemes with ciphertext verifiability. Our schemes offer more compact ciphertexts when compared to all existing stateful public key encryption schemes with ciphertext verifiability. Our first scheme is based on the SDH assumption and the second scheme is based on the CDH assumption. We have proved both the schemes in the random oracle model. © Springer-Verlag Berlin Heidelberg 2012.
About the journal
JournalData powered by TypesetLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
PublisherData powered by TypesetSpringer Verlag
ISSN03029743
Open AccessNo
Concepts (11)
  •  related image
    CHOSEN CIPHERTEXT SECURITY
  •  related image
    CIPHERTEXTS
  •  related image
    Computational effort
  •  related image
    Encryption schemes
  •  related image
    PUBLIC-KEY ENCRYPTION
  •  related image
    PUBLIC-KEY ENCRYPTION SCHEME
  •  related image
    RANDOM ORACLE MODEL
  •  related image
    VERIFIABILITY
  •  related image
    PUBLIC KEY CRYPTOGRAPHY
  •  related image
    Random processes
  •  related image
    Security of data