FILE PROTECTION APPLICATIONS WITH BITWISE MANIPULATION USING VISUAL BASIC.NET

Data security is one important requirement. To the authors make a data encryption application program which is expected to increase the security of data or files. The program is also expected to protect the data file with different types of extensions such as. Exe,. Mdb,. Mpeg,. Doc,. Jpeg,. Zip and others. In making this program, Microsoft Visual Basic.NET is used as the programming language used and some additional software such as text editors, ie Edit Plus 2. The operating system used is MS Windows 98. While the hardware used for a Personal Computer with Pentium III 1300 Mhz processor, 128 Mbytes and memory capacity of 10 GBytes hard drive space. The program is capable of processing a file with a different type of extension. With a file size 1Mbytes this program can process about six seconds to process the encryption and about 5 seconds for the decryption process.