Author : Shweta N.Joshi Mrs.Geetha R.Chillarge

Cloud computing provide new way of computing which is different from traditional computing. Traditional computing lacks in providing confidentiality, integrity and privacy about user data.In such environment cloud forensics is difficult as it has to face few challenges such no physical access to cloud logs due to distributed nature, reduced level of control over cloud, absence of standard log format, multi tenancy and decentralization. Cloud log contains valuable information which helps in forensics investigation. Previously designed logging systems have some security breaches and are unable to provide secure logging environment. This Secure logging scheme is provided by encrypting cloud logs using advance encryption method and it detects DDoS (distributed denial of service) attack on cloud infrastructure. It is detected by analyzing available cloud logs in the cloud server. Searchable encryption (SE) algorithm will be used to increase the security of logging mechanism and to maintain confidentiality and privacy of user data.

Keywords: Cloud forensics; Distributed denial of service; Searchable encryption