Systems and methods for distributing and securing data
US9774449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jul 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.