一種高效的可選擇驗證完整性和消息源的加密體制
An Efficient Encryption Scheme with Choosable Process of Verifying Integrity and Source of Messages
-
摘要: 該文改進(jìn)了P．Paillier等提出的公鑰加密體制．提高了體制的效率，并證明了改進(jìn)后加密體制的安全性與原體制的安全性是等價的。在不增加密文長度的情況下，進(jìn)一步把此體制改進(jìn)成高效的加密+簽名體制，如果消息的接收方認(rèn)為有必要，可以隨時驗證明文消息的完整性和消息的確切來源。
-
關(guān)鍵詞:
- 公鑰加密體制; 安全性分析; n次剩余問題; 加密+簽名
Abstract: The efficiency of a public-key encryption scheme proposed by P. Paillier et al. is improved. The equivalence of security of the improved encryption scheme and that of the original encryption scheme is proved. Without increasing the size of the ciphertext, the scheme is further modified into an efficient signcryption scheme. If necessary, the receiver can verify the integrity and source of the message at any time. -
Paillier P, Pointcheval D. Efficient public-key cryptosystem provably secure against active adversaries.[J]. Advances in Cryptology-ASIACRYPT9.1999,LNCS Vol. 1716:163-[2]Catalano D, Gennaro R, Graham N H. The bit security of Paillierencryption scheme and its applications.[J]. Advances in Cryptology-EUROCRYPTO0.2001,LNCS Vol. 2045:229-[3]Damgard I, Jurik M. A generalization, a simplification and some applications of Pailliers probabilistic public-key system.[J].Advances in Cryptology-PKC9.2001,LNCS Vol. 1992:119-[4]Okamoto T, Uchiyama S. A new public key cryptosystem as secure as factoring.[J]. Advances in Cryptology EUROCRYPTO9.1998,LNCS Vol. 1043:309-[5]Cramer R, Shoup V. Universal hash proofs and a Paradigm for adaptive chosen ciphertext secure public-key encryption.[J].Advances in Cryptology EUROCRYPTO0.2002,LNCS Vol.2332:45-[6]Zheng Y L. Digital signcryption or how to achieve cost (signature encryption) -
計量
- 文章訪問數(shù): 2128
- HTML全文瀏覽量: 79
- PDF下載量: 748
- 被引次數(shù): 0
下載:
