Encryption Scheme Based on Identity and Key Encapsulation Mechanism
Yuan-Xiang He · Jisuanji gongcheng · 2012
This paper proposes a new Identity-based and Key Encapsulation Mechanism(IB-KEM) encryption scheme.The symmetric encryption scheme is used to encryption and description for message,and the identity-based encryption scheme is used to manage the symmetric encryption key.The new scheme is a natural extension of the encryption scheme which is provably secure under chosen ciphertext attack in the standard model.The security of the new scheme is under Decisional Diffie-Hellman(DDH) assumption.The security analysis shows that the new scheme is indistinguishable under adaptive chosen ciphertext attack.