A more efficient group key distribution scheme for wireless ad hoc networks

As the wireless medium is characterized by its lossy nature, reliable communication cannot be as-sumed in the key management scheme. Therefore self-healing is a good property for key distribution scheme in wireless applications. A new self-healing key distribution scheme was proposed, which is optimal in terms of user memory storage and efficient in terms of communication complexity.     

Buffer Overflow Detection on Binary Code

Introduction Bufferoverflowvulnerabilityisareoneofthe mostcommonsecurityflaws[1].Accordingtothe reportfromLvMengtechnologycompany,more than50%securityvulnerabilitiesarecausedby bufferoverflowinthepast5years.Withthe growingofthesizeandcomplexityofsoftwaresys-tems,itbecomeshardertodiscovertheunknown flaws.Inclassicattackscenario,thebufferislocated ontheprogramstack,andthevaluewrittenoveris thereturnaddressforthecurrentstackframe[2].Thereturnaddressistamperedtopointbackinto thebufferwherethemal…