Unbound Tech Ltd.

Unboun Tech Ltd.

George Wainblat

Oz Mishli

Guy Pe'er

Valery Osheter

Michael Kraitsberg

Yaniv Refael

Saar Pe'er

Saar Peer

Alexander Presman

The present invention disclosed a method operable on a multiparty signing system for performing a multiparty signing act on a digital content. The multiparty signing system disclosed in the present invention comprises at least two multiparty signing servers configured with methods to perform the multiparty signing act of a digital content to sign. The multiparty signing system can be configured to perform the multiparty signing act by a private signing key split to at least two key shares, wherein each key share is held by each of the at least two multiparty signing servers. The multiparty signing system is also configured to communicate with at least one computerized node employed to conduct an approval process for approving the multiparty signing act. The approval process can be configured to conduct the approval process by employing a secure multiparty computation, wherein the approval process is configured to utilize secret shares held by the at least one computerized node. In such cases, the multiparty signing act is approved in case the approval process ended successfully.

Method for digital signing with multiple devices operating multiparty computation with a split key

The subject matter discloses a computerized system for securing data, comprising a first node, comprising a first memory storage configured to store a first share of a cryptographic key and a communication module, a second node, in communication with the first node, comprising a second memory storage configured to store a second share of the cryptographic key, wherein the first share and the second share of the cryptographic key are required to perform a cryptographic operation using a multi-party computation (MPC) process, wherein the second node further comprises a control unit configured to change an operation mode of the second share from enable to disable, wherein the disable operation mode prevents performing the cryptographic operation using the MPC process.

System and method for controlling usage of cryptographic keys

The subject matter discloses a method for securing personal information, comprising securing the personal information stored on a data server using a cryptographic secret, said cryptographic secret is unique to a user, storing a first share of the cryptographic secret on a secret storage server communicating with the data server and a second share of the cryptographic secret on a computerized device controlled by the user, detecting a request from the data server to perform an action on the personal information, transmitting the request to the computerized device controlled by the user to use the second share of the cryptographic secret to decrypt the personal information, decrypting the personal information using the first share and the second share, without storing both the first share and the second share in a single device concurrently and performing the action on the personal information on the data server.

System and method for controlling operations performed on personal information

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Tel Mond, Israel

George Wainblat