Detection of encrypted packet streams using feedback probing
First Claim
1. A method, comprising the steps of:
- generating a probe stream having a known observable parameter, the observable parameter exhibiting a known characteristic associated with a known type of data encrypted within a stream of packets; and
communicating the probe stream via a communications network.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems, and devices are disclosed for detecting encrypted Internet Protocol packet streams. A probe stream having a known observable parameter is generated. The observable parameter exhibits a known characteristic of a known type of data encrypted within a stream of packets. The probe stream is communicated to a network element via a communications network. When the probe stream is received by the network element, the network element can compare the known observable parameter to an actual value. Any difference between the known observable parameter and the actual value can be used to correct for network-induced variation and other effects, thus ensuring accurate detection and identification of data types within encrypted streams of packets.
-
Citations
21 Claims
-
1. A method, comprising the steps of:
-
generating a probe stream having a known observable parameter, the observable parameter exhibiting a known characteristic associated with a known type of data encrypted within a stream of packets; and
communicating the probe stream via a communications network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method, comprising the steps of:
-
receiving a probe stream having a known observable parameter;
comparing the known observable parameter to an actual value in the probe stream; and
compensating for variation between the known observable parameter and the actual value when inferring a type of data encrypted within a stream of packets. - View Dependent Claims (10, 11)
-
-
12. A system, comprising:
-
a communications module stored in a memory device, and a processor communicating with the memory device;
the communications module generating a probe stream having a known observable parameter, the observable parameter exhibiting a known characteristic associated with a known type of data encrypted within streams of packets, and the communications module communicating the probe stream via a communications network. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. A computer program product comprising a computer readable medium including instructions for performing the steps:
-
generating a probe stream having a known observable parameter, the observable parameter exhibiting a known characteristic associated with a known type of data encrypted within a stream of packets; and
communicating the probe stream via a communications network. - View Dependent Claims (20, 21)
-
Specification