Verizon, the largest mobile operator in the United States, with more than 80 million customers, plans to use Blockchain for the creation of virtual SIM cards.
As recorded in the US Patent and Trademark Office UU. (Uspto) The company obtained a patent for a concept this month. There he exposes how the invention could eliminate pre-installed and branded physical SIM cards. For those who do not know, the card SIM It is that small downloadable smart card that both cell phones and modems use.
The project summary says:
A method of using virtual subscriber identity modules (vSIM) for client devices is provided. A network device receives a selection of network services to associate with a virtual subscriber identity module (vSIM); starts the creation of a blockchain that includes a vSIM certificate for network services; associates the vSIM certificate with a user account; receives, from a client device associated with the user account, an access request for the vSIM certificate; activates, in response to the access request, the client device to access the network services; and provides instructions to update the blockchain in response to activation.
Therefore, the vSIM can be retrieved and used by any of the different devices associated with the user account or lent to other users.
The patent describes how a physical SIM card can be replaced by a software equivalent, a virtual SIM (vSIM), that is secured with blockchain-based encryption.
Also, a device on the mobile network would create a user account to store one or more vSIM and a selection of network services that would be associated with the account.
Then, as he explains Coindesk, The network device creates a record of Blockchain which includes a certificate vSIM for network services and a International Mobile Subscriber Identity (IMSI), a number that uniquely identifies all users of a cell phone network. The certificate vSIM It is linked to the user account and can be activated on a customer’s mobile device.
Add Coindesk that the nodes participating in the «Distributed consensus network» they would keep a list of records that Verizon call a blockchain vSIM. This, he says, would be insured against malicious manipulation by storing time-stamped transactions in cryptographically protected blocks. The records in the blockchain vSIM would be stored in a hash tree structure for greater efficiency and to ensure that the blocks are received «Without damages or alterations», according to the patent.
From one to another user
It also indicates the patent that vSIM You can be assigned any of the multiple mobile devices linked to the user account and transferred between the devices. It could also be temporarily assigned to other users, he says Verizon
A backup of everything would be a platform vSIM hosted by the mobile network provider that stores a user repository of vSIM using a series of application programming interfaces (API).
In addition, according to the patent:
In one implementation, users can accept new vSIM certificates in a user account, transfer a vSIM between client devices associated with the user account, or deliver a vSIM certificate to another user.
According to Coindesk this might suggest that, for example, a company could buy a quantity of vSIM, assign them to your staff at will and then reassign them to other employees who use the system.
Verizon He previously backed a $ 15 million round of financing for Filament, a company that works in hardware Blockchain for the Internet of things.
Sources: USPTO, Coindesk
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