IDENTITY VERIFICATION VIA SELECTION OF SENSIBLE OUTPUT FROM RECORDED DIGITAL DATA

摘要

A digital data sampler operating in a computer processor selects and stores digital data samples from a data stream used for generating audio-visual output during a session with a client operated by a user. The session generates the data stream independently of the data sampler. The data sampler may collect parameter data correlated to a probability will be remembered by the user at some future time, for each sample. The data sampler may store the data samples and parameter data as shared secret data for use in a future authentication session. During a future authentication session, an authentication device selects test data from the shared secret data to generate sensible output in an authentication process. The authentication process grants access to a controlled resource in response to user input indicating specific knowledge of the shared secret data selected from a presentation of similar sensible outputs.

主权项

1. A method comprising:
sampling digital data according to a sampling function operating on a computer from a data stream for generating visible output during one or more observation sessions between at least two network nodes, wherein the one or more observation sessions are conducted for a primary purpose other than image recognition training and are each initiated under a defined user account; associating the sampled digital data stored on a computer-readable medium an identifier for the user account under which the one or more observation sessions are initiated; authenticating access for a later session under the user account, in response to receiving input from a client indicating selection of sensible output generated from the sampled digital data from a challenge matrix comprising the sensible output generated from the sampled digital data and decoy digital data.