php - Decrypt a video file and stream it to the client on the fly -

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i running simple webserver stack php , apache. have system ram , disk space needed -- speed of course welcome not worry about.

i able have simple way read local encrypted video file (say, 256-bit aes), decrypt custom input, , send client (e.g browser) if simple video file.

i have no idea how start going this. if show me code sample great, if give few pointers happy.

i think use output buffering, again not sure. don't know crypto library use -- since apparently if typing word "mcrypt" code, doing wrong.

here pseudocode thought up:

$key    = "[string key]"; $file   = "/home/qnx/file.mp4.encrypted";  ($i = 0; $i < [file length]; $i++) {     /* get, few bytes of file , decrypt them? dunno */     '... decrypt bytes ...'     '... save buffer ? ...'     /* send current buffer ? */ } '... close connection ...'


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