US 2015/0039882 A1 · IDENTIFYING CONTENT FROM AN ENCRYPTED COMMUNICATION

Abstract

Provided is an identifying device for identifying request content from an encrypted request to a server, the identifying device including: a target acquiring unit for acquiring the data size of an encrypted response returned from the server for the encrypted request to the server to be identified; a candidate acquiring unit for acquiring the data size of each of a plurality of encrypted response candidates returned by the server in response to a plurality of encrypted request candidates to be identified sent to the server corresponding to a plurality of known request content candidates; and an identifying unit for identifying the request content to be identified from the plurality of request candidates on the basis of results obtained by comparing the data size of an encrypted response for an encrypted request to be identified to the data sizes of a plurality of encrypted response candidates.

Claims18

Dependent claims

A method for identifying request content of an encrypted request to a server, the method comprising the steps of:

acquiring, from a server, information about an encrypted response to an encrypted request;
acquiring, from the server, information about a plurality of encrypted response candidates corresponding to a plurality of known encrypted request candidates;
and
identifying, by one or more computer processors, content of the encrypted request by comparing the information about the encrypted response to the information about the plurality of encrypted response candidates.

1 more element

A non-transitory computer program product for identifying request content of an encrypted request to a server, the computer program product comprising:

one or more storage devices;
and
program instructions stored on the one or more storage devices, the program instructions comprising:
program instructions to acquire, from a server, information about an encrypted response to an encrypted request;
program instructions to acquire, from the server, information about a plurality of encrypted response candidates corresponding to a plurality of known encrypted request candidates;
and
program instructions to identify content of the encrypted request by comparing the information about the encrypted response to the information about the plurality of encrypted response candidates.

4 more elements

A computer system for identifying request content of an encrypted request to a server, the computer system comprising:

one or more computer processors;
one or more storage devices;
and
program instructions, stored on the one or more storage devices for execution by the one or more computer processors, the program instructions comprising:
program instructions to acquire, from a server, information about an encrypted response to an encrypted request;
program instructions to acquire, from the server, information about a plurality of encrypted response candidates corresponding to a plurality of known encrypted request candidates;
and
program instructions to identify content of the encrypted request by comparing the information about the encrypted response to the information about the plurality of encrypted response candidates.

5 more elements

Dependencies are inferred from the claim text.

Identifying content from an encrypted communication

Life of this patent

Identifying content from an encrypted communication

Life of this patent

Abstract

Claims18