Secure routing protocol for an ad hoc network using one-way/one-time hash functions
US7401217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2003 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jul 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method authenticates packets that are transmitted serially in a network. A current password is selected for a current packet to be transmitted. The current packet includes current data. A one-way/one-time hash function is applied to the current password to form a current tag. A next password is selected for a next packet that includes next data, and the one-way/one-time hash function is applied to the next password to form a next tag. The one-way/one-time hash function is then applied to the next data, the next tag, and the current password to obtain a hashed value. The current packet is then transmitted to include the hash value, the current data, the current tag, and a previous password of a previous transmitted packet to authenticate the current data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.