Paypal, Inc.

Srinivasan Rangaraj

Srivathsan Narasimhan

Aravindan Ranganathan

This disclosure includes techniques for using multiple cryptographic certificates for a secure connection. One embodiment is a method including: receiving by a client N public encryption keys over a network from a server, wherein N is an integer greater than 1; generating N session keys in response to receiving the N public encryption keys; encrypting each of the N session keys with a respective one of the N public encryption keys; subsequent to encrypting each of the N session keys, sending the N session keys encrypted over the network to the server; encrypting, with a first one of the N session keys, a first portion of a payload associated with a first message; encrypting, with a second one of the N session keys, a second portion of the payload associated with the first message; and sending the first message, comprising the payload encrypted, to the server from the client.

Systems and methods encrypting messages using multiple certificates

Systems and methods for managing user data across multiple applications and devices are disclosed. An example method includes: detecting a user is conducting a transaction using a first application installed on a user device; determining that the user is requesting one or more payment options from a first merchant associated with the first application; determining that a global payment method is selected by the user; determining that the user device is a trusted device associated with the user; and in response to determining that the user device is a trusted device, providing the global payment method to the user in the first application on that same device or a different device.

Systems and methods for user data management across multiple devices

A method is provided that includes assigning one or more first records of a first table and one or more second records of a second table to corresponding range groups of a plurality of range groups. The method further includes comparing at least one record of the first table with at least one record of the second table, where the at least one record of the first table and the at least one record of the second table are assigned to a first range group of the plurality of range groups. The method also includes, based on the comparing, identifying a parent record and a child record and segmenting the parent record based on the child record. Further, the method includes subsequent to the segmenting the parent record, performing a join operation on the first table and the second table.

Systems and methods for providing tokenization services at a mobile device

A method including: receiving a first plurality of randomly-selected logical operations; performing a first decryption of first client credentials stored locally at the client device by inputting cipher code to a decryption algorithm, wherein the decryption algorithm includes the first plurality of randomly-selected logical operations; subsequent to the first decryption of the first client credentials, performing a first authentication of the client-based application with a server, including transferring the first client credentials to the server; after the first authentication, receiving a second plurality of randomly-selected logical operations from a network resource separate from the client device; applying the second plurality of randomly-selected logical operations to the decryption algorithm; and performing a second decryption of the first client credentials stored locally at the client device by inputting the cipher code to the decryption algorithm, wherein the decryption algorithm includes the second plurality of randomly-selected logical operations.

Growing community of inventors

Cupertino, CA, United States of America

Srinivasan Rangaraj