Hi, Ive written encryption programs before, but I need help, cos Ive got a great idea on a method of encryption, but I have no idea where to start, the idea involves two arrays where the letters that make up the message are mixed in with random letters and numbers, and then the entire array is written to file, but at the same time, a second array is written to a different file that has the location of all the message characters that are in the first array. This encryption idea could then be made more compilcated by having multidimentional arrays, thats the plan, so, any tips, ideas on where to start???