公开(公告)号：US20240106859A1

公开(公告)日：2024-03-28

申请号：US18534471

申请日：2023-12-08

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L9/40

CPC分类号： H04L63/18 ,  H04L63/061 ,  H04L63/068 ,  H04L63/0876 ,  H04L63/0892

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US20220400000A1

公开(公告)日：2022-12-15

申请号：US17347814

申请日：2021-06-15

申请人： WhatsApp LLC.

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L9/08 ,  H04L9/32 ,  H04L12/58

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US11843636B1

公开(公告)日：2023-12-12

申请号：US17348024

申请日：2021-06-15

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L29/06 ,  H04L9/40

CPC分类号： H04L63/18 ,  H04L63/061 ,  H04L63/068 ,  H04L63/0876 ,  H04L63/0892

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US11743035B2

公开(公告)日：2023-08-29

申请号：US17347814

申请日：2021-06-15

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L9/08 ,  H04L9/32

CPC分类号： H04L9/0847 ,  H04L9/085 ,  H04L9/3247

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US20230179605A1

公开(公告)日：2023-06-08

申请号：US17542316

申请日：2021-12-03

申请人： WhatsApp LLC

发明人： Maaz Ali ,  Colin Clemmons

IPC分类号： H04L9/08

CPC分类号： H04L63/123 ,  H04L63/065 ,  H04L9/085 ,  H04L63/08

摘要： Methods, systems, and storage media providing equal signing authority between multiple devices of a single user in an end-to-end encrypted messaging system are disclosed. Exemplary implementations may generate an account key comprising a public account key and a private account key for onboarding a first user device of a first user to the end-to-end encrypted messaging system; upload the public account key to an encrypted server of the end-to-end encrypted messaging system; in response to a request to onboard a second user device to the end-to-end encrypted messaging system, establish a secure communication channel between the second user device and the first user device; send a copy of the private account key to the second user device from the first user device through the secure communication channel; and onboard a third user device to the end-to-end encrypted messaging system through either the first user device or the second user device.

公开(公告)号：US20240064143A1

公开(公告)日：2024-02-22

申请号：US18498831

申请日：2023-10-31

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L9/40

CPC分类号： H04L63/0884 ,  H04L63/18 ,  H04L63/0876 ,  H04L63/068 ,  H04L63/061 ,  H04L63/0892

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US11848930B1

公开(公告)日：2023-12-19

申请号：US17348046

申请日：2021-06-15

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L9/40

CPC分类号： H04L63/0884 ,  H04L63/061 ,  H04L63/068 ,  H04L63/0876 ,  H04L63/0892 ,  H04L63/18

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.

公开(公告)号：US11658955B1

公开(公告)日：2023-05-23

申请号：US17348014

申请日：2021-06-15

申请人： WhatsApp LLC

发明人： Abhinav Raj ,  Maaz Ali ,  Evan Christopher DeVrieze

IPC分类号： H04L29/06 ,  H04L9/40

CPC分类号： H04L63/068 ,  H04L63/061 ,  H04L63/0876 ,  H04L63/0892 ,  H04L63/18

摘要： This application describes methods, mediums, and systems for verifying a device for use in a messaging system. Using the device verification procedures described, a messaging system can securely authorize new devices to send and receive encrypted messages on behalf of a user, preferably without the need to share a private encryption key between the users' different devices. The application describes several techniques that can be used to provide such a system, including distributing a computer-perceptible code that encodes encryption information between a secondary device and a primary device. This allows the information to be distributed without intervention by a server. Other techniques provide unique ways to build and reverify authorized device lists, distribute encryption keys in chat channels, ensure that lists of authorized devices are distributed in the correct order and remain valid for an appropriate amount of time, add new devices to an ongoing or new conversation, and more.