Gray-box analysis of chosen ciphertext security for public key encryption scheme
Dake He · Jisuanji yingyong yanjiu · 2009
To evaluate the IND-CCA2 security of public key encryption schemes,proposed the gray-box analysis of IND-CCA2 security.In the new method,evaluated the IND-CCA2 security by careful catalog and analysis of the information leak of decryption oracle.Compared with the reduction proof,gray-box analysis was more simple and easy to understand,and more suitable to be used as an evaluation method of the public key encryption scheme's IND-CCA2 security.Most importantly,the analysis of the decryption oracle's information leak not only can evaluate the IND-CCA2 security of a scheme,but also can find the reason of insecurity.This provides direction information for the design of IND-CCA2 schemes.