| Abstract [eng] |
Partial fail encryption - it's the encryption method that doesn't encrypt the whole file, that way saving technical resources and time for encryption. In practice partial fail encryption in removable media can be used for personal usage, also in commercial practice when it is required to encrypt data to removable media, also for initial encryption when data is being constantly encrypted and speed is a very important manner. This work examines regularly encountered files types compatibility for partial encryption and how much data it is required to finish the encryption, so it couldn't be decrypted by using publicly available software. Speed tests were made between partial and full encryption methods to diagnose if partial encryption has any real benefit. To accomplish set goals for this work, a testing system was established, which allows to encrypt files fully and partially by tracking operations time. By the end of the work it is discussed about compatible files types for partial encryption, test results and conclusion. The examinations made in this work, proven that partial encryption for bigger undecryptable file types can save time compared to full encryption method. |
