Yu Wu

US Patent:

20190268148, Aug 29, 2019

Filed:

Feb 23, 2018

Appl. No.:

15/903655

Inventors:

- Walldorf, DE
Yu Wu - San Francisco CA, US
Xiaoxiao Gu - Shanghai, CN

International Classification:

H04L 9/08
H04L 9/14
H04L 9/32
H04L 9/06

Abstract:

A method includes generating a root key pair including a public key and a private key, generating metadata for keys associated with a tenant, wherein the metadata includes a key tag, a key version, and a tenant identifier, deriving a tenant key from the root key pair and the metadata, and outputting the tenant key.

US Patent:

20190171843, Jun 6, 2019

Filed:

Dec 4, 2017

Appl. No.:

15/830748

Inventors:

- Walldorf, DE
Yu Wu - San Francisco CA, US
Xiaoxiao (Jerome) Gu - Shanghai, CN
Yukching Leung - San Francisco CA, US

International Classification:

G06F 21/62
H04L 9/06
G09C 1/00

Abstract:

A method includes obtaining first text information in a first format, converting the first text information to an offset value from a base time in a second format, generating an encryption key, encrypting the offset value with the encryption key to produce an encrypted offset value in the second format, converting the encrypted offset value to second text information in the first format, and outputting the second text information as encrypted text corresponding to the first text information.

US Patent:

20170193485, Jul 6, 2017

Filed:

Dec 31, 2015

Appl. No.:

14/986187

Inventors:

- San Jose CA, US
Yu Wu - Sunnyvale CA, US

International Classification:

G06Q 20/22
G06Q 30/02
G06Q 20/10

Abstract:

Systems, methods, and machine-readable mediums are described that provide a user with a ranked hierarchy of payment options. An example method includes receiving a request for a list of payment options associated with the user. To fulfill the request, a list of payment options associated with the user and compatible with the vendor are generated. The list of payment options is then ranked based at least in part on benefits associated with each payment option in the list. The ranked list is then provided to the vendor such that the ranked list and information about the ranking is presented to the user for selection.