CAJ | 학술논문

由于现有签密方案大多基于双线性对，配对运算计算量较大，且实现效率不高，不能满足对代理签密者的匿名要求，因此无需配对的签密方案是密码学的研究方向。而基于二次剩余的签名方案不仅具有描述简单，能够抵抗选择密文攻击的优点，且相较于基于配对的签名方案具有更高的实现效率。为此，将二次剩余的方法应用到签密方案中，并结合匿名性，提出一种基于二次剩余的匿名代理者签密方案。分析结果表明，该方案具有匿名性与公开验证性。
유우현유첨밀방안대다기우쌍선성대，배대운산계산량교대，차실현효솔불고，불능만족대대리첨밀자적닉명요구，인차무수배대적첨밀방안시밀마학적연구방향。이기우이차잉여적첨명방안불부구유묘술간단，능구저항선택밀문공격적우점，차상교우기우배대적첨명방안구유경고적실현효솔。위차，장이차잉여적방법응용도첨밀방안중，병결합닉명성，제출일충기우이차잉여적닉명대리자첨밀방안。분석결과표명，해방안구유닉명성여공개험증성。
Most of the existing signcryptions are based on bilinear pairing,but the signcryption without bilinear pairing is a research of cryptography,because the pairing operation requires a lot of computations,and it can not anonymous the proxy signcrypter. The signature scheme based on quadratic residue is widely used with its advantages such as simple description,resistance of chosen ciphertext attack and high efficiency. Its efficient is higher compared with signcryption schemes based on bilinear pairing. This paper adds anonymity to the scheme based on quadratic residue to realize anonymous proxy signcryption. Analysis results show that the scheme not only provides anonymity, but also provides public verifiability.