Duality Technologies Inc.

Kurt Rohloff

Vinod Vaikuntanathan

Yuriy Polyakov

Arina Shainski

Methods and system for risk determination and risk categorization using encrypted data are provided. The risk determination can involve determining an inner product operation between a generalized weight table and an encrypted incidence vector, summing the result of the inner product operation and/or decrypting the results. Method and systems for encrypting data for use in homomorphic risk determination are also provided.

System and method for securely evaluating risk over encrypted data

A device, system, and method for decentralized management of a distributed proxy re-encryption key ledger by multiple devices in a distributed peer-to-peer network. A network device may receive shared data defining access to a proxy re-encryption key. The network device may locally generate a hash code based on the shared data. The network device may receive a plurality of hash codes generated based on versions of the shared data at a respective plurality of the other devices in the network. If the locally generated hash code matches the received plurality of hash codes, the network device may validate that the shared data is the same across the network devices and may add the received proxy re-encryption key access data and locally generated hash code to a local copy of the distributed proxy re-encryption key ledger.

Secure and distributed management of a proxy re-encryption key ledger

A device, system and method for fast and secure Proxy Re-Encryption (PRE) using key switching. A first user is assigned first encryption and decryption keys and a second user is assigned second encryption and decryption keys. First encrypted data encrypted with the first encryption key may be re-encrypted using a proxy re-encryption key to simultaneously switch encryption keys by adding the second encryption key and cancelling the first encryption key by the first decryption key to transform the first encrypted data encrypted by the first encryption key to second encrypted data encrypted by the second encryption key, without decrypting the underlying data. The second user may be the sole system device that possesses the (e.g., private) second decryption key to decrypt the second encrypted data.

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West Orange, NJ, United States of America

Kurt Rohloff