Invention Grant
- Patent Title: Biometric token for blockchain
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Application No.: US16002191Application Date: 2018-06-07
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Publication No.: US11244316B2Publication Date: 2022-02-08
- Inventor: Shelby Solomon Darnell , Karthik Nandakumar , Sharathchandra Pankanti , Nalini K. Ratha
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Main IPC: G06F21/32
- IPC: G06F21/32 ; G06Q20/40 ; G06Q20/10 ; H04L9/06 ; H04L29/06

Abstract:
An example operation may include one or more of obtaining a first biometric sample of a user from a user device. extracting, by an issuing node of a permissioned blockchain network, a biometric template from the first biometric sample, encrypting the biometric template, distributing an issuetoken proposal comprising the encrypted biometric template to the blockchain network, and generating and distributing a biometric token to the user device. In response to the user indicating to the user device to redeem the biometric token, the method includes one or more of presenting, by the user device, the biometric token to a verifying node of the blockchain network, validating, by the verifying node, the biometric token, receiving, by the verifying node, a second biometric sample from the user device, distributing a redeemtoken proposal to the blockchain network, committing a transaction corresponding to the biometric token, to the blockchain network, and invalidating the biometric token.
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