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公开(公告)号：US11809972B2
公开(公告)日：2023-11-07
申请号：US17726338
申请日：2022-04-21
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Antonio Marcedone , Frederick Liu , Ruogu Zeng
Abstract: Methods, computer readable media, devices, and systems provide for distributed machine learning. In one aspect, a method of training a model is disclosed. The method includes receiving, by a client device, from one or more servers, an intermediate model, training, by the client device, the intermediate model based on private data, and transmitting, by the client device, to the one or more servers, the trained intermediate model.
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公开(公告)号：US11716336B2
公开(公告)日：2023-08-01
申请号：US17445553
申请日：2021-08-20
Applicant: Snap Inc.
Inventor： Subhash Sankuratripati
IPC: H04L9/32 , H04L9/40 , H04L9/08 , H04W12/033
CPC classification number: H04L63/123 , H04L9/0838 , H04L9/0891 , H04L63/0442 , H04L63/061 , H04W12/033
Abstract: Systems and methods for end to end encryption are provided. In example embodiments, a computer accesses an image including a geometric shape. The computer determines that the accessed image includes a candidate shape inside the geometric shape. The computer determines, using the candidate shape, an orientation of the geometric shape. The computer determines a public key of a communication partner device by decoding, based on the determined orientation, data encoded within the geometric shape. The computer receives a message. The computer verifies, based on the public key of the communication partner device, whether the message is from the communication partner device. The computer provides an output including the message and an indication of the communication partner device if the message is verified to be from the communication partner device. The computer provides an output indicating an error if the message is not verified to be from the communication partner device.
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公开(公告)号：US20220147653A1
公开(公告)日：2022-05-12
申请号：US17583866
申请日：2022-01-25
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Leah Fortier
IPC: G06F21/62
Abstract: Methods and systems for identifying personally identifiable information (PII) are disclosed. In some aspects, frequency maps of fields storing known PII information are generated. The frequency maps may count occurrences of unique bigrams in the PII fields. A field of interest may then be analyzed to generate a second frequency map. Correlations between the first frequency maps and the second frequency map may be generated. If one of the correlations meets certain criterion, the disclosed embodiments may determine that the field of interest does or does not include PII. Access control for the field of interest may then be based on whether the field includes PII. In some aspects, a storage location of data included in the field of interest may be based on whether the field includes PII.
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公开(公告)号：US10225265B1
公开(公告)日：2019-03-05
申请号：US15099719
申请日：2016-04-15
Applicant: Snap Inc.
Inventor： Subhash Sankuratripati
Abstract: Systems and methods for end to end encryption are provided. In example embodiments, a computer accesses an image including a geometric shape. The computer determines that the accessed image includes a candidate shape inside the geometric shape. The computer determines, using the candidate shape, an orientation of the geometric shape. The computer determines a public key of a communication partner device by decoding, based on the determined orientation, data encoded within the geometric shape. The computer receives a message. The computer verifies, based on the public key of the communication partner device, whether the message is from the communication partner device. The computer provides an output including the message and an indication of the communication partner device if the message is verified to be from the communication partner device. The computer provides an output indicating an error if the message is not verified to be from the communication partner device.
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公开(公告)号：US11797709B2
公开(公告)日：2023-10-24
申请号：US17583866
申请日：2022-01-25
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Leah Fortier
IPC: G06F21/62
CPC classification number: G06F21/6245
Abstract: Methods and systems for identifying personally identifiable information (PII) are disclosed. In some aspects, frequency maps of fields storing known PII information are generated. The frequency maps may count occurrences of unique bigrams in the PII fields. A field of interest may then be analyzed to generate a second frequency map. Correlations between the first frequency maps and the second frequency map may be generated. If one of the correlations meets certain criterion, the disclosed embodiments may determine that the field of interest does or does not include PII. Access control for the field of interest may then be based on whether the field includes PII. In some aspects, a storage location of data included in the field of interest may be based on whether the field includes PII.
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Patent Agency Ranking
公开(公告)号：US20220245524A1
公开(公告)日：2022-08-04
申请号：US17726338
申请日：2022-04-21
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Antonio Marcedone , Frederick Liu , Ruogu Zeng
Abstract: Methods, computer readable media, devices, and systems provide for distributed machine learning. In one aspect, a method of training a model is disclosed. The method includes receiving, by a client device, from one or more servers, an intermediate model, training, by the client device, the intermediate model based on private data, and transmitting, by the client device, to the one or more servers, the trained intermediate model.
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公开(公告)号：US11263341B1
公开(公告)日：2022-03-01
申请号：US16158034
申请日：2018-10-11
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Leah Fortier
Abstract: Methods and systems for identifying personally identifiable information (PII) are disclosed. In some aspects, frequency maps of fields storing known PII information are generated. The frequency maps may count occurrences of unique bigrams in the PII fields. A field of interest may then be analyzed to generate a second frequency map. Correlations between the first frequency maps and the second frequency map may be generated. If one of the correlations meets certain criterion, the disclosed embodiments may determine that the field of interest does or does not include PII. Access control for the field of interest may then be based on whether the field includes PII. In some aspects, a storage location of data included in the field of interest may be based on whether the field includes PII.
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公开(公告)号：US12189808B1
公开(公告)日：2025-01-07
申请号：US16913221
申请日：2020-06-26
Applicant: Snap Inc.
Inventor： Subhash Sankuratripati , Sriram Keelveedhi
Abstract: Systems and methods for performing operations comprising: storing, by one or more processors of a server, an encrypted profile for a user; receiving encrypted information from a first application that is installed on a user device associated with the user; updating the encrypted profile based on the received encrypted information without the server decrypting the profile and the information; selecting a first advertisement from a plurality of advertisements based on the updated encrypted profile; and transmitting the first advertisement to the user device.
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公开(公告)号：US20230418976A1
公开(公告)日：2023-12-28
申请号：US18244797
申请日：2023-09-11
Applicant: Snap Inc.
Inventor： Vasyl Pihur , Subhash Sankuratripati , Dachuan Huang , Leah Fortier
IPC: G06F21/62
CPC classification number: G06F21/6245
Abstract: Methods and systems for identifying personally identifiable information (PII) are disclosed. In some aspects, frequency maps of fields storing known PII information are generated. The frequency maps may count occurrences of unique bigrams in the PII fields. A field of interest may then be analyzed to generate a second frequency map. Correlations between the first frequency maps and the second frequency map may be generated. If one of the correlations meets certain criterion, the disclosed embodiments may determine that the field of interest does or does not include PII. Access control for the field of interest may then be based on whether the field includes PII. In some aspects, a storage location of data included in the field of interest may be based on whether the field includes PII.
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公开(公告)号：US11411932B2
公开(公告)日：2022-08-09
申请号：US15818685
申请日：2017-11-20
Applicant: Snap Inc.
Inventor： Michael Duong , Anirudh Garg , Subhash Sankuratripati , Edward Chenhui Xue , Marcel M. Yung
Abstract: Systems, devices, media, and methods are presented for device independent secure messaging. The systems and methods generate an encrypted message by encrypting message content, designated for a specified recipient, with an encryption key. The systems and methods select a set of recipient keys, associated with the specified recipient, from a plurality of member keys. For each recipient key, the systems and methods encrypt the encryption key to generate a set of encrypted keys and transmit the encrypted message and an encrypted key of the set of encrypted keys to one or more client devices associated with the specified recipient. The systems and methods then receive an acknowledgement indicating a termination status of the encrypted message.
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