Constructing an attribute based chameleon hash function

Chameleon hash function equips with several special properties and is widely implemented to construct chameleon digital signatures. In this research, we take the advantages of chameleon hash and attribute based cryptography to present an attribute based chameleon hash function. The new presented function not only inherits the properties of chameleon hash, but also adds the new features brought by attribute based cryptography. By proof, the attribute based chameleon hash function achieves the essential security properties. The proposed scheme can be used be construct attribute based chameleon signature in the future.