Private Key Share Rotation with Distributed Key Generation for MPC
Summary
USPTO published patent application US20260095315A1 covering systems and methods for private key share rotation with distributed key generation for multi-party computation (MPC). The application, filed by inventors from Fireblocks Inc., describes cryptographic systems that generate partial signatures across multiple devices using private key shares, aggregate signatures when a minimum threshold is met, and facilitate transaction processing on distributed ledgers. CPC classifications include H04L 9/0866, H04L 9/085, and H04L 9/3297.
What changed
The USPTO published a patent application (US20260095315A1) for a cryptographic system enabling secure private key share rotation and distributed key generation for multi-party computation (MPC). The system generates partial signatures at different devices using corresponding private key shares, receives additional partial signatures from other devices, identifies when the total meets a minimum threshold, and aggregates signatures to process distributed ledger transactions. The application includes six inventors and covers technical methods for enhancing cryptographic security in blockchain and MPC environments.
This patent application is informational and does not impose compliance obligations on any party. Technology companies developing cryptographic systems, blockchain platforms, or MPC solutions may benefit from reviewing the published claims to understand existing intellectual property in this space. No action is required from regulated entities. The application serves as prior art documentation for the cryptocurrency, digital asset, and cybersecurity technology sectors.
Archived snapshot
Apr 3, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
CONDITIONAL PRIVATE KEY SHARE ROTATION WITH DISTRIBUTED KEY GENERATION
Application US20260095315A1 Kind: A1 Apr 02, 2026
Inventors
Jurvis Si Jun Tan, Wilmer Paulino, Jonathan Pollack, Jesse Posner, Jordan Mecom, Clayton Douglas Garrett
Abstract
Systems and methods are disclosed for security through multi-party computation (MPC). In some examples, a system generates, at a first device and using a first private key share (of a plurality of private key shares). The plurality of private key shares each correspond to different devices. The system receives, from one or more additional devices, one or more additional partial signatures that are generated using one or more additional private key shares (of the plurality of private key shares). The system identifies that a total amount of partial signatures associated with the transaction is meets or exceeds a minimum threshold amount of partial signatures. The system aggregates the first partial signature and the one or more additional partial signatures to generate a signature, and facilitates processing of a transaction using the signature and a distributed ledger.
CPC Classifications
H04L 9/0866 H04L 9/085 H04L 9/3297
Filing Date
2025-04-07
Application No.
19172085
Named provisions
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