implemented fast symmetric encryption/decryption operating on files
implemented fast symmetric encryption/decryption operating on files

flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015,flomar/CrypTool-VS2015