all, i've been on cypherpunks for about a year a half now, and have wacthed many interesting threads pass by but i've never posited anything. what has brought me out into the open is this : i work for an engineering firm doing asic design, i use pgp ( as do all rational persons ), a co-worker here has come up with a 'cypher' scheme that he would like to use to send code to our clients. the scheme is this : he would take the file of code and pad all lines to the length of the longest line, he would then preform column swaps, and then row swaps, to 'mix up' the file. the person receiving the file would then preform the opposite functions to recover the file. it seems so simple that it can't be good. i've convenced him to use pgp, but i would like some input if possible on why his cypher scheme is not a good one. thanx -stuart Packet Engines - The Industry leader in Gigabit ethernet / o o o o o o o . . . o o ______ _________ ________ ________ __=====__T___ o |DDD[ _______ | | | | | | | |_|| .][__n_n_| | | 802.3 | | ATM | | MPEG | | FDDI | | SCSI |
(________|___|__|_______|_|_______|_|______|_|______|_.|________|_| _/oo OOOOO oo` 'o^o o^o 'o^o o^o`'o^o o^o`'o^o o^o`'o^o o^o` -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ | "all sufficiently advanced || Stuart Johnson | technologies are indistinguishable || Lead Asic Engineer | from magic," || Packet Engines Inc. | --Arthur C. Clarke || sjohnson@packetengines.com