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.

Abstract: The present invention comprises an electronic carrier and an electronic device. The electronic carrier comprises a microprocessor and a security chip stored with a transaction authorizing key and a transaction confirmation program. The electronic device is installed with a transaction application applicable to a plurality of cryptocurrencies. The transaction application is stored with a plurality of scripts and can generate a transaction request after receiving a cryptocurrency balance through a networking module. The transaction request includes a raw data that is incapable of being executed independently and a target script. The electronic carrier generates a transaction authorization data according to the target script and the raw data, and the transaction authorization data is transferred to the cloud transaction platform for completing the transaction of cryptocurrency.

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.

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.

Abstract: A multiple authentication method of the present invention comprises the following steps: an authentication server terminal obtains an authentication address by performing authentication on a digital currency account; a transaction item is created by an electronic device, and the transaction server terminal generates matching information and sends the matching information to the electronic device; that set amount is consistent with transaction amount of the matching information is confirmed to transmit an electronic signature to the electronic device; the authentication server terminal sends a license signature to the electronic device after confirming the transaction address of the matching information is consistent with the authentication address; the electronic device obtains the matching information, the electronic signature and the license signature to instruct the transaction server terminal to perform the digital currency transaction.

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.

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.

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.

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.

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.

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.

Abstract: A digital asset transaction method includes the steps of generating sale and purchase information in a seller and a buyer electronic device, respectively; matching the sale and the purchase information via a transaction server to generate matched information to the seller electronic device; transmitting private key information and the matched information from the seller electronic device to a digital accounting platform for directly transmitting a digital asset from a seller digital asset account to a buyer digital asset account; and, after verifying the transmission of digital asset, the transaction server transferring an amount of transaction currency from a buyer currency account to a seller currency account. Therefore, the digital asset is not transferred via the transaction server but directly transferred from one to another digital asset account once the digital accounting platform receives the private key information and the matched information. Therefore, the risk of digital asset theft is reduced.

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.