TY - BOOK AU - G.Selvi AU - Dr.T.PURUSHOTHAMAN TI - Cryptanalysis of data encryption standard cipher system using heuristic search algorithms KW - Data encryption standard [DES] KW - simplifies DES [S-DES] KW - Bees algorithm [BA] KW - Bacterial foraging optimization [BFO] Algorithm KW - cuckoo search [cs] ER -