.BIT File Extension
File Type 1FinalCrypt Encrypted Data File
What is a BIT file?
A BIT file is an encrypted data file created by FinalCrypt, a program used to encrypt and decrypt personal files. It contains a file, such as a .JPG image or .WMV video, that has been encrypted for security purposes.
BIT files are created by FinalCrypt and can only be opened by FinalCrypt using the key file used to encrypt the BIT file. Data in a BIT cannot be recovered without the key file, so it is important that it is stored in a safe location and backed up.
Although BIT files are encrypted, they still can be identified by the first 70 bytes in the file. This data is the Message Authentication Code (MAC), which is saved in plain text and may be saved in MAC_V1 or MAC_V2 version.
File Type 2Xilinx Bitstream File
.BIT File Association 2
File generated by BitGen, a program used for generating bitstreams required by Xilinx FPGAs (field-programmable gate arrays); saved in a binary format and contains the configuration information for the circuit; used for uploading the configuration data to the FPGA device, which can be completed using the iMPACT GUI provided with the Xilinx software.
BIT files are one of the files generated in a sequence of files used for designing and configuring an FPGA. For example, a Verliog (.V) HDL design file can be used to generate an .NGC netlist file, which is then converted into a .NGD file, and then from the NGD file to a bitstream BIT file.
NOTE: The BitGen program is included with the Xilinx ISE software package.