Title	Hybrid Homomorphic Cryptosystem for Secure Transfer of Color Image on Public Cloud
Author	Haider M. Al-Mashhadi and Ala'a A. Khalf
Citation	Vol. 18  No. 3  pp. 48-55
Keywords	Cloud Computing El-Gamal cryptosystem Homomorphic Encryption Cryptosystem Enhanced Homomorphic Cryptosystem Cryptography.

Title	A Survey of Public-key Cryptography over Non-abelian Groups
Author	G. H. J. Lanel, T. M. K. K. Jinasena and B. A. K. Welihinda
Citation	Vol. 21  No. 4  pp. 289-300
Keywords	Cryptography, Diffie-Hellman, Discrete Logarithm Problem, El-Gamal, Hamiltonian Cycle/Path Problem, Non-abelian/Non-commutative.