Data Hiding in Virtual Machine Disk Images

Abstract

Data hiding in computer system is an interesting and important research issue, which brings benefits for secret communication and watermarking. The development of virtual machine brings new potential for data hiding. In this paper we explore the potential for data hiding in virtual machine disk images, and especially hiding schemes that can be used with copy-on-write images. Besides being considered as a way for valid uses such as secret communication and watermarking, these schemes can be a warning against malicious intentions as well. Furthermore, it lays the foundation for a more thorough analysis of the whole virtual machine system for data hiding.

Impacto do uso de contêineres em um serviço de nuvem HTC

“…As MVs tradicionais armazenam seu SO, suas bibliotecas e aplicações dentro de drives virtuais no hospedeiro, chamados de imagens de disco, cujo formato pode variar de acordo com o hipervisor utilizado [Su et al 2010]. Esta imagem funciona como um sistema de armazenamento isolado de cada MV e permitem que os dados armazenados dentro de uma MV não sejam acessíveis pelo SO Hospedeiro.…”

“…Esta imagem de disco pode ocupar grandes quantidades de espaço no disco da máquina hospedeira, como umúnico arquivo ou dividido em arquivos menores. Ainda, na etapa de criação da MV, a sua imagem de disco pode ocupar todo o espaço definido se for definido como fix-sized file ou ocupar incrementalmente durante a vida da MV se copy-on-write file [Su et al 2010] for utilizada. Nos experimentos apresentados mais tarde, todas as MVs foram criadas com tamanho fixo especificadas através de fix-sized file.…”

Low Error Detection in Image Watermarking Using DCT

“…In [11], the discrete wavelet transform (DWT) coefficients were employed to embed watermarks in images. In [12], a new scheme for virtual machine disk images was demonstrated. In [13], new schemes were proposed for embedding data in the image based on FFT.…”

Phase Watermarking of Images with Complex-Valued Linear-Phase Subband Filter Banks

“…In [6], the character-line intersection was applied for embedding and detecting invisible watermark on a text image. Watermarking algorithms for still images and videos were studied in [7]- [9]. In [7], a data hiding scheme in virtual machine disk images was demonstrated.…”

“…Watermarking algorithms for still images and videos were studied in [7]- [9]. In [7], a data hiding scheme in virtual machine disk images was demonstrated. In [8], new schemes are proposed for embedding data in the image based on FFT.…”