International Journal of Computer Applications
Outsourcing to cloud brings a new face to computation. In outsourcing, maintenance cost as well as upgrade cost is low to zero. Outsourcing's features are held back by data privacy concerns. In cloud, privacy of data can be assured by encryption schemes. Common encryption schemes will decrypt the data before processing and re encrypts data after processing, key sharing required. The sensitive data inside the processor are vulnerable to eavesdropping and other attacks. HEROIC Framework (Homomorphically EncRypted One Instruction Computer) a secure architecture for processing data in encrypted form is introduced as a promising solution to the security and privacy concerns.