Method for preventing mirror image from being tampered in desktop virtualization

The invention discloses a method for preventing a mirror image from being tampered in desktop virtualization. The method comprises the following steps: establishing an independent storage field for an ISO mirror image file; creating two system users, one of which has a writing right while the other has a reading right; while uploading the mirror image file, verifying the user uploading the mirror image file; generating an MD5 code for each uploaded mirror image file, storing in a database and establishing a one-to-one correspondence relation between the mirror image file name and the MD5 code thereof in the database; before using the mirror image file each time, verifying if the MD5 value thereof is changed. The method provided by the invention has the beneficial effects that the operation is simple; the universality is strong; the flow is simple; MD5 is a widely used hashing function in the field of computer safety and is strong in universality; the dual protection of right separation and MD5 verification is adopted, so that the risk in tampering the mirror image is greatly reduced, the abnormal condition of the mirror image is timely detected and the safety is high.