# US 10,721,071 B2 · Wearable personal digital identity card for fingerprint bound access to a cloud service > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,721,071 B2 - Document ID: US10721071B2 - Status: Granted - Kind: B2 - Application number: 16/675,670 - Filed: 2019-11-06 - Published: 2020-03-05 - Granted: 2020-07-21 - Earliest claimed: 2013-03-15 - Assignees: Tyfone, Inc. - Applicants: Tyfone, Inc. - Inventors: Siva G. Narendra; Prabhakar Tadepalli; Saurav Chakraborty; Donald Allen Bloodworth - Web page: https://patentgrep.com/patent/US10721071B2 ## CPC - H04W 12/009: {specially adapted for networks, e.g. wireless sensor networks, ad-hoc networks, RFID networks or cloud networks} - H04B 5/00: Near-field transmission systems, e.g. inductive or capacitive transmission systems - H04B 5/20: characterised by the transmission technique; characterised by the transmission medium - H04L 9/3231: {Biological data, e.g. fingerprint, voice or retina (network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861)} - H04L 9/3271: {using challenge-response} - H04W 12/06: Authentication - H04W 12/068: {using credential vaults, e.g. password manager applications or one time password [OTP] applications} - H04W 12/08: Access security - H04L 63/0853: {using an additional device, e.g. smartcard, SIM or a different communication terminal (cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234)} - H04L 63/0861: {using biometrical features, e.g. fingerprint, retina-scan (cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231)} - H04L 2209/24: Key scheduling, i.e. generating round keys or sub-keys for block encryption - H04W 4/027: {using movement velocity, acceleration information} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A personal digital ID device provides a digital identifier to a service for a predetermined duration in response to user interaction. The user interaction may include a button press. The personal digital ID device may be in the form of a bracelet, a key fob, or other form factor. The service may be provided by a mobile device, in the cloud, or elsewhere. ## Claims ### Claim 1 A wearable personal digital ID device comprising: a crypto/cipher engine having at least one digital identifier including one or more keys for challenge-response; a button accessible to a user of the personal digital ID device; a fingerprint sensor positioned on a surface of the button to allow for fingerprint scanning when the user interacts with the button; a radio; a processor coupled to the crypto/cipher engine, the button, the fingerprint sensor, and the radio, the processor configured to validate the user through a fingerprint scan and to make the one or more keys for challenge-response available to perform authentication with a cloud service through a mobile device by powering the radio for a predetermined duration in response to a validated user interacting with the button; and a housing formed to encircle the user's wrist, the housing comprising a connector that when opened modifies electrical functionality of the wearable personal digital identity device. ### Claim 2 (depends on 1) The wearable personal digital ID device of claim 1 wherein the crypto/cipher engine comprises a smartcard controller. ### Claim 3 (depends on 1) The wearable personal digital ID device of claim 1 wherein the crypto/cipher engine comprises a plurality of smartcard secure elements. ### Claim 4 (depends on 1) The wearable personal digital ID device of claim 1 wherein the crypto/cipher engine is user-removable from the personal digital ID device. ### Claim 5 (depends on 4) The wearable personal digital ID device of claim 4 wherein the crypto/cipher engine resides on a subscriber identity module (SIM) card. ### Claim 6 (depends on 1) The wearable personal digital ID device of claim 1 wherein the radio comprises a near-field radio. ### Claim 7 (depends on 6) The wearable personal digital ID device of claim 6 wherein the near-field radio comprises a ISO 14443 compatible radio. ### Claim 8 (depends on 6) The wearable personal digital ID device of claim 6 wherein the near-field radio comprises a ISO 18092 compatible radio. ### Claim 9 (depends on 1) The wearable personal digital ID device of claim 1 wherein the radio comprises a non-near-field radio. ### Claim 10 (depends on 9) The wearable personal digital ID device of claim 9 wherein the non-near-field radio comprises a Bluetooth radio. ### Claim 11 (depends on 1) The wearable personal digital ID device of claim 1 wherein the radio comprises a near-field radio and a non-near-field radio. ### Claim 12 (depends on 1) The wearable personal digital ID device of claim 1 wherein the one or more keys for challenge-response comprises a symmetric key. ### Claim 13 (depends on 1) The wearable personal digital ID device of claim 1 wherein the one or more keys for challenge-response comprises an asymmetric key. ### Claim 14 A wearable device comprising: a housing with a connector that when closed provides power to the wearable device; a crypto/cipher engine having at least one digital identifier including one or more crypto keys for challenge-response; a button accessible to a user of the personal digital ID device; a fingerprint sensor positioned on a surface of the button to allow for fingerprint scanning when the user interacts with the button; a radio; a processor coupled to the crypto/cipher engine, the button, the fingerprint sensor, and the radio, the processor configured to validate the user through a fingerprint scan and to make the one or more crypto keys for challenge-response available for a predetermined duration to perform authentication with a cloud service through a mobile device by powering the radio in response to a validated user interacting with the button. ### Claim 15 (depends on 14) The card of claim 14 wherein the crypto/cipher engine comprises a smartcard secure element. ### Claim 16 (depends on 14) The card of claim 14 wherein the radio comprises a non-near-field radio. ### Claim 17 (depends on 16) The card of claim 16 wherein the non-near-field radio comprises a Bluetooth radio. ### Claim 18 (depends on 14) The card of claim 14 wherein the radio comprises a near-field radio and a non-near-field radio. ### Claim 19 (depends on 18) The card of claim 18 wherein the near-field radio comprises a ISO 14443 compatible radio. ### Claim 20 (depends on 18) The card of claim 18 wherein the near-field radio comprises a ISO 18092 compatible radio.