公开(公告)号：US11232444B2

公开(公告)日：2022-01-25

申请号：US15906834

申请日：2018-02-27

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  Shih Mai Ou

IPC: G06Q20/32 ,  G06Q20/40

Abstract: A digital asset transaction method is implemented using a connected device connectable to the Internet and a closed device not connectable to the Internet and includes the following steps: the connected device displays a first check message according to a transaction data input thereto by a user; the connected device transmits the transaction data to the closed device after the user confirms the first check message matches the transaction data; the closed device displays a second check message according to the transaction data transmitted thereto by the connected device; the closed device transmits an authentication data to the connected device after the user confirms the second check message matches the transaction data; and the connected device executes the digital asset transaction after receiving the authentication data from the closed device. With the above method, the user can verify transaction content on different devices and decide whether to execute the transaction.

公开(公告)号：US11315122B2

公开(公告)日：2022-04-26

申请号：US16388504

申请日：2019-04-18

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  Shih-Mai Ou

IPC: G06Q20/40 ,  G06Q20/36 ,  H04L9/08

Abstract: The present disclosure provides an authentication method for e-wallet carrier, wherein the e-wallet carrier is stored with an authentication program, and the method comprises: an escrow institution constructs user information and a user database, and the user database has private and public key information; the escrow institution generates authentication information through the authentication program, and transmits the private key information as well as authentication program to the carrier to make the carrier in a restricted mode; when receiving verification information and confirming that its user information is correct, the escrow institution provides the authentication information to the user; after electronic receives the authentication information, the carrier is switched to be in a unlocked mode, thus to make transactions in currency. Through this, the information content of the private key information is in the custody of the escrow institution reduce the risk of man-caused loss in the private key information.

公开(公告)号：US10555173B2

公开(公告)日：2020-02-04

申请号：US15893578

申请日：2018-02-09

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  Shih Mai Ou

IPC: H04W12/06 ,  H04W12/04 ,  G06K7/10 ,  H04L9/30 ,  G06F8/61

Abstract: A pairing authentication method includes the steps of installing application software on first and second electronic devices to create first and second public keys thereon, respectively; connecting the first electronic device to a closed storage device for the former to generate a checking key; storing the first public and the checking key on a security chip of the closed storage device; connecting the second electronic device to the closed storage device for the former to generate an authorization key that matches the checking key, and transmitting the second public and the authorization key to the closed storage device; and the closed storage device verifying the authorization key matches the checking key and storing the second public key on the security chip. Therefore, only a cardholder knowing the checking key can use the closed storage device and no risk of asset theft exists if the closed storage device was lost.

公开(公告)号：US20200320527A1

公开(公告)日：2020-10-08

申请号：US16373660

申请日：2019-04-03

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  SHIH-MAI OU

IPC: G06Q20/38 ,  H04L9/14 ,  H04L9/30 ,  H04L9/08 ,  G06Q20/06 ,  G06Q20/32

Abstract: The present invention relates to a transaction method of digital currency, comprising the following steps: user information is provided to three terminals, and the terminals will generate a set of a public key and a private key respectively; subsequently, every terminal obtains a transaction public key by combining three public keys; then verification information is provided and compared to match the user information, such that one of the terminals obtains two or more electronic signatures; finally, the digital currency is transferred according to the transaction public key together with two or more electronic signatures. By doing so, the electronic signatures corresponding to the private keys need to be obtained from at least two terminals to transfer the digital currency of the transaction public key. So, even a theft steals one of the private keys, the theft still cannot transfer the digital currency by the stolen private key.

公开(公告)号：US10680820B2

公开(公告)日：2020-06-09

申请号：US15916608

申请日：2018-03-09

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  Shih-Mai Ou

IPC: H04L29/06 ,  H04L9/32 ,  H04L9/08 ,  G06Q20/36 ,  G06Q20/32

Abstract: A method of creating and recovering digital wallet is implemented using a storage device and a connected device that are connected to each other. The storage device has a private key stored thereon for confirming a digital asset transaction, and includes an information conveying unit, an operation interface, a processor and a security element. The method includes following steps: a user uses the connected device to generate and transmit a digital wallet creating request to the security element via the processor; the security element verifies there is not any digital wallet stored thereon and accordingly creates a digital wallet; the processor requests a recovery mnemonic from the security element and provides the same via the information conveying unit for the user to back it up; and the connected device obtains and decodes an encoded asset message stored in the digital wallet to create a piece of public digital wallet information.

公开(公告)号：US10459714B2

公开(公告)日：2019-10-29

申请号：US15848955

申请日：2017-12-20

Applicant: CoolBitX Ltd.

Inventor： Jay Zhuang ,  Shih Mai Ou

IPC: G06F21/57 ,  G06F9/4401 ,  G06F16/176 ,  G06F16/23 ,  G06F12/00 ,  G06F13/16 ,  G06F15/78 ,  G06F8/65 ,  G06F3/06 ,  G06F12/14 ,  H04L9/32 ,  G06F9/445

Abstract: A method of updating firmware of closed storage device includes the steps of connecting an electronic device to a closed storage device having built-in first and second memories and bootstrap loader, and the first memory storing a first application that is set by the bootstrap loader as a default boot loader; the electronic device downloading a second application having a different version from the first application and setting the first memory to a locked state; the electronic device transmitting the second application to the second memory via the bootstrap loader and the second memory is updated when the second application is written thereinto; and the bootstrap loader setting the second application as the boot loader. The two applications of different versions in the closed storage device are updated alternately, and the old application can still be used as the boot loader when the update of the other application has failed.