Possible to bypass Signature, Key-Pair ID

[wandering]

Hi,

First of all I'm glad that I found an entire forum dedicated to this! It took me a long time to learn what I have on my own and I'm already learning a lot from my short time here!

My question is that I have faced a lot are these signatures/key-pair IDs that come along with a lot of the streamed audio. For example:

song.mp3?Expires=1416976129&Signature=XMuoGVFc4jXR8WRun8yV3 35eHq7JBPLdzJvEodg6qw-1N9R1DoazoGzWVMOTLQvOjEe0WC2DRnA84g7onAJQA25M-H8zX-jv5ovOxLPPIGOlL8XgWnWmjQd~Vo9nnV1Q~z9YODkb26dE8Mvq IbCu1HwEzMewXqCNCuQf0JlNSKaFj1zl5aizqQ1utqhdHW93~m 7OQ1w8vKn0qLy1BbPCY6VD9W5BYRi-quuKnB3sqhE2zPsdTcgP7TLRdw~PJdFT6epdLD3OGg7YKZptgy E8JPeirUzXaaHoVICnadeaL65r7KheS4R58mJaYEom2h6SO9Bg BbIOAmjMpDksnpLXLA__&Key-Pair-Id=APKAJVT5U3SZ36KU56JQ

These values seem to be randomly generated (except 'expires' seems to move along with time) so I don't see a way of getting a url granting access. On the particular website I'm trying to use now there is also an RTMP link that has the same sort of encryption, or whatever this would be called - so I'm not sure if that changes anything.

Thank you for your time.