Linux dm-crypt disk encryption in Windows environment

This thesis deals with symetric block cipher encryption of disc image at sector level. Examines possibilities of using open source multiplatform encryption libraries in Windows enviroment. It also describes the algorithms by which the encryption can be implemented. Simple application shows that it is possible to implement disc image encryption using OpenSSL library in operating system Windows so that disc image can be readable in operating system Linux. Consecutive Total Commander demo plugin also shows this functionality.