![]() ![]() Ciphering files by a key – prevents reading files even in case of hacking servers. It is possible to protect multimedia transmission without using a password as well as additional verification by means of certificates. Ciphering whole transmission (secure tunnel for all data) – prevent eavesdropping and interception contents of transmitted files. However, every time an access password is required. The solution can be strength- ened by not only ciphering control data but also whole transmission (described be- low). ![]() Ciphering control data (secure tunnel for control data) – requires using access password and special software on the client’s side. Additionally the situation is complicated in case of dynamic host configu- ration and (however only once) in case of administrative change of Internet address of an entitled computer. Still remains a problem of protection of access to these computers by not-entitled persons or impersonation some Internet address (it is possible for a hacker). Internet address blocked access – permits for access to files only from specified computers. An alternative can be here using dispensable passwords (Fig. Even in case of using ciphered password, protection is easy to bypass by eavesdropping a manner an entitled user gets access, and then by repeating the procedure by a not entitled user. Password blocked access – prevents random access to file server on a basic level. They include (starting from the weakest one): 1. There are several levels of protection, which can be proposed. During the user’s connection to a MDVL, it is necessary to ensure authorisation of data being accessed. Video files recorded during medical examinations and procedures contain personal and confidential information about patients. Exactly the same requirements concern a person supporting creation of server content – a person editing compressed movies and creating their descriptions. ![]() This last one item is dependant on a format for storing compressed movie content (but usually exist in an operating system). MySQL) connected to The client’s computer have to be equipped with an Internet browser in order to browse a contents of an application server (movie catalogue) and a browser for digital video files. ![]()
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