Method and apparatus for securing fiber in an optical network

Details Method and apparatus for securing fiber in an optical network Method and apparatus for securing fiber in an optical network

2011-08-16

2011-08-16

Pascal, Leslie (Department: 2613)

Optical communications

Eavesdropping

Reexamination Certificate

active

08000601

ABSTRACT:
A method and apparatus for securing an optical communication link includes the step of identifying a profile of the link by measuring, at the transmitter, optical back-reflections from optical pulses forwarded to a receiver. The profile is stored at the transmitter. Periodically during operation, such as during key exchange, more optical pulses are forwarded to the receiver, and the back reflections are collected as periodic profiles. The periodic profiles are compared against the stored profiles. Eavesdroppers, such as those who cut the fiber, tap the fiber, or implement a man in the middle attack, may be easily identified because the losses caused by their interference with the fiber will be evident in the periodic profiles.

REFERENCES:
patent: 4207561 (1980-06-01), Steensma
patent: 5187362 (1993-02-01), Keeble
patent: 6047159 (2000-04-01), Powell et al.
patent: H2075 (2003-08-01), Gnauck et al.
patent: 2006/0018475 (2006-01-01), Vig et al.

Affiliated with

Also associated with

Rating

Method and apparatus for securing fiber in an optical network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for securing fiber in an optical network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for securing fiber in an optical network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2737905