Security challenges of integration of hash functions into cloud systems

Abstract

Cloud Computing is a new paradigm for the IT industry. IT services such as infrastructures, platforms and applications are provided remotely, over the Internet, and all resources are virtualized. Challenges about confidentiality, integrity, authenticity, and nonrepudiation are still opened representing the main concerns that reduces the growth of cloud computing. Hash based mechanisms are thus mainly used for message authentication and this paper analyses imposed security issues over clouds. To this end, recently developed semantically enhanced Cyber Security Model (CSM) is extended representing a promising solution capable to address all issues of heterogeneity, shared parties and different interests over clouds.

Función resumen perceptual para verificación de integridad en audio forense

“…Trabaja en bloques de 512 bits que provienen de usar 8 palabras de 64 bits, las que a su vez entregan 3 palabras de 64 bits. Esto genera una cadena final de 192 bits [18].…”