An efficient IND-CCA2 secure Paillier-based cryptosystem

作者：Das Angsuman^*; Adhikari Avishek

来源：Information Processing Letters, 2012, 112(22): 885-888.

DOI：10.1016/j.ipl.2012.08.007

• Cryptography
• Paillier cryptosystem
• Chosen ciphertext attack
• Random oracle model

This paper proposes a provably secure transformation of Paillier cryptosystem into an IND-CCA2 secure one in random oracle model. Our construction exploits the randomness extractability of Paillier cryptosystem for achieving efficiency. Lastly, we compare this conversion with other generic and specific IND-CCA2 conversions in terms of computational overhead and efficiency.

• 出版日期2012-11-30