Patents by Inventor Dan YADLIN
Dan YADLIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11943346Abstract: A system and method for digitally signing data. A method includes generating, by a first device, at least one first secret share based on a secret key chosen by the first device, wherein the first device is offline with respect to a second device; partially signing data by the first device using the at least one secret share, wherein the data is received from the second device without establishing direct communications between the first device and the second device; and sending the partially signed data from the first device to the second device, wherein the second device generates signed data using the partially signed data, wherein the signed data corresponds to a public key generated based on the at least one first secret share and at least one second secret share generated by the second device.Type: GrantFiled: March 2, 2023Date of Patent: March 26, 2024Assignee: PAYPAL, INC.Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Patent number: 11818275Abstract: A system and method for securing application programming interface (API) requests using multi-party digital signatures. The method includes generating, by a first system, at least one first secret share of a plurality of secret shares based on an API secret, wherein the plurality of secret shares includes the at least one first secret share and at least one second secret share, wherein the at least one second secret share is generated by at least one second system; and signing, by the first system, an API request using the at least one first secret share, wherein the API request is further signed by the at least one second system using the at least one second secret share, wherein the API request is signed without revealing any of the at least one first secret share to the at least one second system and without revealing any of the at least one second secret share to the first system.Type: GrantFiled: September 9, 2022Date of Patent: November 14, 2023Assignee: PAYPAL, INC.Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Publication number: 20230208631Abstract: A system and method for digitally signing data. A method includes generating, by a first device, at least one first secret share based on a secret key chosen by the first device, wherein the first device is offline with respect to a second device; partially signing data by the first device using the at least one secret share, wherein the data is received from the second device without establishing direct communications between the first device and the second device; and sending the partially signed data from the first device to the second device, wherein the second device generates signed data using the partially signed data, wherein the signed data corresponds to a public key generated based on the at least one first secret share and at least one second secret share generated by the second device.Type: ApplicationFiled: March 2, 2023Publication date: June 29, 2023Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Patent number: 11689371Abstract: Techniques for securing digital signatures using multi-party computation. A method includes generating at least one first secret share by a first system, wherein at least one second secret share is generated by one of at least one second system; signing data based on the at least one first secret share when a signing policy is met, wherein the signing is part of an interactive signing process including running a multi-party computation protocol by the first system and the at least one second system, wherein the signed data corresponds to a public key generated based on the plurality of secret shares, wherein the signing policy requires a minimum number of secret shares, wherein shares of one system alone are not sufficient to meet the signing policy, wherein no portion of shares of one system are revealed to the other system during the interactive signing process.Type: GrantFiled: July 29, 2019Date of Patent: June 27, 2023Assignee: PAYPAL, INC.Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Patent number: 11632244Abstract: A system and method for digitally signing data. A method includes generating, by a first device, at least one first secret share based on a secret key chosen by the first device, wherein the first device is offline with respect to a second device; partially signing data by the first device using the at least one secret share, wherein the data is received from the second device without establishing direct communications between the first device and the second device; and sending the partially signed data from the first device to the second device, wherein the second device generates signed data using the partially signed data, wherein the signed data corresponds to a public key generated based on the at least one first secret share and at least one second secret share generated by the second device.Type: GrantFiled: September 14, 2020Date of Patent: April 18, 2023Assignee: PAYPAL, INC.Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Publication number: 20230006838Abstract: A system and method for securing application programming interface (API) requests using multi-party digital signatures. The method includes generating, by a first system, at least one first secret share of a plurality of secret shares based on an API secret, wherein the plurality of secret shares includes the at least one first secret share and at least one second secret share, wherein the at least one second secret share is generated by at least one second system; and signing, by the first system, an API request using the at least one first secret share, wherein the API request is further signed by the at least one second system using the at least one second secret share, wherein the API request is signed without revealing any of the at least one first secret share to the at least one second system and without revealing any of the at least one second secret share to the first system.Type: ApplicationFiled: September 9, 2022Publication date: January 5, 2023Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Patent number: 11444779Abstract: A system and method for securing application programming interface (API) requests using multi-party digital signatures. The method includes generating, by a first system, at least one first secret share of a plurality of secret shares based on an API secret, wherein the plurality of secret shares includes the at least one first secret share and at least one second secret share, wherein the at least one second secret share is generated by at least one second system; and signing, by the first system, an API request using the at least one first secret share, wherein the API request is further signed by the at least one second system using the at least one second secret share, wherein the API request is signed without revealing any of the at least one first secret share to the at least one second system and without revealing any of the at least one second secret share to the first system.Type: GrantFiled: May 6, 2019Date of Patent: September 13, 2022Assignee: PAYPAL, INC.Inventors: Dan Yadlin, Ben Riva, Alon Navon, Lev Pachmanov, Jonathan Katz
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Publication number: 20220085989Abstract: A system and method for digitally signing data. A method includes generating, by a first device, at least one first secret share based on a secret key chosen by the first device, wherein the first device is offline with respect to a second device; partially signing data by the first device using the at least one secret share, wherein the data is received from the second device without establishing direct communications between the first device and the second device; and sending the partially signed data from the first device to the second device, wherein the second device generates signed data using the partially signed data, wherein the signed data corresponds to a public key generated based on the at least one first secret share and at least one second secret share generated by the second device.Type: ApplicationFiled: September 14, 2020Publication date: March 17, 2022Inventors: Dan YADLIN, Ben RIVA, Alon NAVON, Lev PACHMANOV, Jonathan KATZ
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Publication number: 20200044862Abstract: A system and method for securing application programming interface (API) requests using multi-party digital signatures. The method includes generating, by a first system, at least one first secret share of a plurality of secret shares based on an API secret, wherein the plurality of secret shares includes the at least one first secret share and at least one second secret share, wherein the at least one second secret share is generated by at least one second system; and signing, by the first system, an API request using the at least one first secret share, wherein the API request is further signed by the at least one second system using the at least one second secret share, wherein the API request is signed without revealing any of the at least one first secret share to the at least one second system and without revealing any of the at least one second secret share to the first system.Type: ApplicationFiled: May 6, 2019Publication date: February 6, 2020Applicant: Curv, Ltd.Inventors: Dan YADLIN, Ben RIVA, Alon NAVON, Lev PACHMANOV, Jonathan KATZ
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Publication number: 20200044863Abstract: Techniques for securing digital signatures using multi-party computation. A method includes generating at least one first secret share by a first system, wherein at least one second secret share is generated by one of at least one second system; signing data based on the at least one first secret share when a signing policy is met, wherein the signing is part of an interactive signing process including running a multi-party computation protocol by the first system and the at least one second system, wherein the signed data corresponds to a public key generated based on the plurality of secret shares, wherein the signing policy requires a minimum number of secret shares, wherein shares of one system alone are not sufficient to meet the signing policy, wherein no portion of shares of one system are revealed to the other system during the interactive signing process.Type: ApplicationFiled: July 29, 2019Publication date: February 6, 2020Applicant: Curv, Ltd.Inventors: Dan YADLIN, Ben RIVA, Alon NAVON, Lev PACHMANOV, Jonathan KATZ