Encrypting-Program

This Simple Program written entirely from c language can encrypt and decrypt a binary file (txt jpg png pdf etc.).

Inputs

1. Mode : E for encrypting / D for decrypting.
2. File Name : Source file you want to encrypt/decrypt.
3. Output Name : A name for the processed file.
4. Rerun : To re-run the program.

Outputs

1. Encrypted/Decrypted File

Requirments:

1. A valid binary file to Encrypt (.txt, .jpg, .pdf, .png, .c, etc..)
2. Every Input/Output file MUST be inside " Vault/ "
3. Use "File_Name.extention" format when giving names. [Sometimes program still runs without .extension]
4. Undifined inputs will lead to errors.

Handled Error behavior:

1. Wrong mode
2. Input file doesn't exist.
3. Output file name already exist.
   • user can overwrite it / give a new name
4. wrong input for re-run.

Other Notes:

• "Vault/" already has some sample files. You can use your own files.
• Encrypted file's extension doesn't has to be same as the Original file.
• But decrypted file need same extension as the Orginal file to work properly.