Jpmorgan Chase Bank, N.a.

Consensys Software Inc.

Other

Benjamin E Diamond

Tucker Richard Balch

Antigoni Ourania Polychroniadou

Ali M Sadegh

A method for privacy-preserving inventory matching may include: (1) receiving a plurality of axe submissions; (2) arranging the parties into data structures based on a direction in the party's axe submission; (3) sending each party's commitment to the other party; (4) receiving, from each party, output secret-shares of an arithmetized comparison circuit; (5) verifying that the output secret-shares of the arithmetized comparison circuit received from the parties match commitments to the output secret-shares sent by the respective opposite party; (6) identifying a minimal party based on the outputs of the arithmetized comparison circuit; (7) generating and sending a proof of the minimal party identification to the minimal party; (8) receiving a minimal quantity integer from the minimal party; (9) revealing the minimal quantity integer to the first party and the second party; and (10) executing the trade for the minimal quantity integer.

Systems and methods for privacy-preserving inventory matching with security against malicious adversaries

A blockchain anonymizing system and method is provided for side-channel-secure blockchain anonymity using the Invisible Internet Project (I2P). Instead of merely preventing the revelation of a user's IP address, embodiments are directed to inhibiting any correlation of the user's transactions over time.

Systems and methods for side-channel-secure blockchain anonymity using I2P

Embodiments may include a two-round-trip protocol by which two parties can securely conduct an already-agreed-upon exchange of digital assets (i.e., in the provable absence of settlement risk). For example, in the first round of the protocol, each party may send to a specially designed 'settlement contract' the 'statement' corresponding to the party's portion of the proposed bilateral transaction (e.g., how much asset the party will transfer, and to whom), as well as a hash of the party's &#x201c;proof&#x201d;. Between rounds, each party checks that the other party's statement transfers to the party the agreed-upon amount. The settlement contract may then lock the proof hashes against future misuse, and in particular against use by unauthorized parties. In the second round, each party sends its proof to the settlement contract. The settlement contract then dispatches both statement-proof pairs and executes the bilateral exchange.

Systems and methods for provably fair atomic swaps of private digital assets

Systems and methods for anonymous cryptocurrency transactions are disclosed. A method may include: receiving, from the electronic device associated with a sender of a cryptocurrency transaction, a zero-knowledge statement comprising a shuffled and anonymized list of participants comprising the sender, a receiver of the cryptocurrency transaction, and a plurality of decoy participants, a transfer amount, and a remaining balance, and a secret witness, wherein each participant is associated with an index; generating one-out-of-many proofs for the sender and the receiver based on their associated indices; generating a Basic Zether proof for the transfer amount and the remaining balance; conducting many-out-of-many proofs with parameters chosen for an anonymous payment setting; and constructing a zero-knowledge proof for the zero-knowledge statement. The sender sends an ordered list of the participants and the zero-knowledge proof to a verifier using the FiatShamir transform, and the verifier verifies the zero-knowledge proof.

Systems and methods for anonymous cryptocurrency transactions

A portable adjustable multiple end drill device comprises a rotary power source communicating with a plurality of end drill units. The device includes restraints for holding the rotary power source and a hearing rigidly attached to the restraints for rotating the device. The device includes two end-caps, each of which is connected to a respective arm directly or via at least one modular extension of a respective arm. The end-caps are also connected to guide bars and a splined power transmission shaft. The device imparts a set of rectilinearly aligned work areas of a work piece, which work areas are respectively and simultaneously drilled by the respective drill bits. A rectilinear position of each end drill unit can be adjusted mechanically. Each drill bit holder, or base, holding a respective drill bit or fastener bit is rotated by a system of bearing-journaled drive gears.

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New York, NY, United States of America

Benjamin E Diamond