HCBK stands for "Hash Commitment Before Knowledge", and is a protocol discovered by Bill Roscoe in 2005, designed to bootstrap security in ad hoc networks. A related protocol SHCBK or "Symmetrised HCBK" was discovered by Long Nguyen and Roscoe in 2006.
The benefits of HCBK protocol
- Intruder cannot improve chance of successful attack beyond 1/(number of digest values).
- Any failed attack with a chance of success can be spotted.
- Our implementation removes any possibility of complacency by customer allowing an intruder through this phase.
- Minimum requirement for human effort
- Bootstrapping secure session key low computation cost
- Allows for low cost implementation of client's side application (demo available)