Changes between Version 8 and Version 9 of doc/OONI/Tests/Switzerland


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Timestamp:
Jul 8, 2012, 11:06:38 PM (7 years ago)
Author:
isis
Comment:

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  • doc/OONI/Tests/Switzerland

    v8 v9  
    99== Experiment ==
    1010
    11    Alice and Bob connect both to each other, and also to a neutral observer, called Switzerland. Both Alice and Bob exchange asynchronous keys with the Switzerland server. After determining clock drift and a few other things (TODO: fill in specific setup problems from notes), Alice and Bob separately compute hashes of the headers for all packets sent and received from their own perspectives, and send these hashes to Switzerland for comparison. Switzerland then attempts to instruct Alice and Bob in masking out headers which have been modified due to common albeit benign quirks, such as those due to NAT routers. (Project Bismark might be able to provide more information on the ways that various routers modify packets.) When potentially malicious changes to a stream are detected, Switzerland requests the packet captures for that segment of the stream from both Alice and Bob for further analysis.
     11   Alice and Bob connect both to each other, and also to a neutral observer, called Switzerland. Both Alice and Bob exchange asymmetric keys with the Switzerland server. After determining clock drift and a few other things (TODO: fill in specific setup problems from notes), Alice and Bob separately compute hashes of the headers for all packets sent and received from their own perspectives, and send these hashes to Switzerland for comparison. Switzerland then attempts to instruct Alice and Bob in masking out headers which have been modified due to common albeit benign quirks, such as those due to NAT routers. (Project Bismark might be able to provide more information on the ways that various routers modify packets.) When potentially malicious changes to a stream are detected, Switzerland requests the packet captures for that segment of the stream from both Alice and Bob for further analysis.
    1212
    1313== Control ==