The Johns Hopkins University

Robert M Seng

Russell Andrew Fink

David R Zaret

Laura J Glendenning

Margaret F Lospinuso

Sakunthala Harshavardhana

Sterling E Vinson

Rachel B Stonehirsch

Kathleen N McGill

Samantha M Tyson

Tzuhsiu Chiou

Apparatuses and methods for private information retrieval are provided. One example method may include receiving a query state machine that is an encoding of a search pattern. The query state machine may include a plurality of states and a transition function that defines a plurality of transitions based on the search pattern. The example method may also include performing a private query against a target query string of a target query record by applying the query state machine to the target query string to develop a private encoding. The method may further include transmitting query results based on the private encoding.

Apparatus and method for private information retrieval

An example method for determining a software classification is provided. The example method may include determining a plurality of substream boundaries including a first substream boundary within a representation of a software binary, and segmenting the representation of the software binary into a plurality of substreams. The example method may further include generating a first count string for a first substream based on operational class token counts in a tokenization of the first substream, where the tokenization of the first substream may be based on a mapping of commands within the first substream to operational classes. The example method may further include performing a first count string comparison with a reference database to determine a first count string match, where the first count string comparison being based on the first count string, and classifying the software binary based on the first count string match.

Apparatus and method for identifying constituent parts of software binaries

Growing community of inventors

Silver Spring, MD, United States of America

Robert M Seng