Digital currency mining circuitry having shared processing logic

US10409827B2 · kind B2 · utility

Assignee

• 21, Inc. · US

Inventors

• Veerbhan Kheterpal · Burlingame, US
• Daniel Firu · Burlingame, US
• Nigel Drego · San Francisco, US

Key dates

• Filing date: Sep 25, 2015
• Grant date: Sep 10, 2019
• Expiry date: Aug 1, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D10/00
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

An integrated circuit may be provided with cryptocurrency mining capabilities. The integrated circuit may include control circuitry and a number of processing cores that complete a Secure Hash Algorithm 256 (SHA-256) function in parallel. Logic circuitry may be shared between multiple processing cores. Each processing core may perform sequential rounds of cryptographic hashing operations based on a hash input and message word inputs. The control circuitry may control the processing cores to complete the SHA-256 function over different search spaces. The shared logic circuitry may perform a subset of the sequential rounds for multiple processing cores. If desired, the shared logic circuitry may generate message word inputs for some of the sequential rounds across multiple processing cores. By sharing logic circuitry across cores, chip area consumption and power efficiency may be improved relative to scenarios where the cores are formed using only dedicated logic.