Huawei Technologies Co., Limited

Zhijun Mo

Zhiwei Shang

Yin Tan

Luyun Lin

Priya Soundararajan

Jianfei Ye

Mikhail Kazaev

Tongyu Ge

The present disclosure relates to one or more processors, communicative with one or more computer-readable media, are configured to automatically generate a sensitive text detector including a regular expression or keyword. A set of text inputs, including sensitive text, are received. The sensitive text is extracted from the set of text inputs. Based on the extracted sensitive text, one or both of the regular expression and the keyword are generated. The generated regular expression and/or keyword are used to generate a sensitive text detector for sensitive text detection.

Methods and devices for generating sensitive text detectors

The present disclosure describes a method, an apparatus, and a non-transitory computer-readable medium for detecting sensitive text information such as privacy-related text information from a signal and modifying the signal by removing the detected sensitive text information therefrom. The apparatus receives the signal such as an image, a video clip, or an audio clip, and recognizes a text string therefrom. The apparatus then detects, from the text string, a substring based on a similarity between the substring and a regular expression, and modifies the signal by removing information related to the detected substring from the signal.

Methods, apparatuses, and computer-readable storage media for image-based sensitive-text detection

The disclosed systems and methods are directed to detecting sensitive data on a computing device. This includes matching predetermined keywords in input data, to determine data in vicinities of matched keywords in the input data in which sensitive data is likely to be found, and matching predefined patterns associated with sensitive data to the data in vicinities of matched keywords to detect sensitive data. Matching the predetermined keywords occurs prior to matching the predefined patterns, and the data in vicinities of matched keywords is substantially shorter than the input data.

Method and system for detecting sensitive data

A method and system for application security. The methods and systems of the present disclosure improve application security and may be used to secure a host application and operating system from malicious fast applications. A request to access resources of the computing device is received from an application adapter of a fast application operating within a host application on the computing device. In response to a determination that the request is associated with resources included in a permission list of the fast application, the unique user identifier (UID) of the application adapter to the UID of the host application is translated by the operating system, which determines whether to allow the request based on the UID of the host application. Otherwise, the operating system determines whether to allow the request based on the UID of the application adapter.

Method and system for application security

The disclosed systems, and methods are directed to a method for Privacy Preserving Inference (PPI) comprising receiving a first set of matrix information from a client device, generating k&#x2212;1 matrices by operating a first CSPRNG associated with the server with k&#x2212;1 seeds, computing inferences from the set of kmatrices, generating a matrix S, generating k&#x2212;1 random matrices, computing a matrix Yin accordance with the inference matrix Y, the matrix Sand the k&#x2212;1 random matrices, transmitting a second set of matrix information to the client device, the second set of matrix information includes k&#x2212;1 seeds corresponding to the k&#x2212;1 random matrices and the matrix Y, receiving a matrix U from the client device, and computing an inference value y from the matrix U.

System, method and apparatus for privacy preserving inference

A computing device includes: a trusted execution environment with access to a memory storing a deletable root key, the memory inaccessible by a second execution environment; and at least one processor operable in the trusted execution environment, wherein when operating in the trusted execution environment, the at least one processor is configured for: based on requests from the second execution environment, performing a root key operation on an encryption key utilized by the second execution environment to secure data the second execution environment; and deleting the root key upon detection of a security event.

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Waterloo, Canada

Zhijun Mo