Science & Engineering Research Support soCiety (SERSC)
In this paper, the authors present the novel selective encryption algorithm for vector map protection for storage, transmission and distribution to authorized users. In proposed algorithm, they just select some values of polylines and polygons in DCT domain to encrypt by random algorithms and cryptography. Experimental results verified that proposed algorithm is effectively and security. Maps are changed whole after encryption process, and unauthorized users cannot access to copy or use them. Encrypted maps do not alter the size of file and not have loss accuracy.