Caesar加密解密算法附matlab代码.zip

function varargout = caesar(varargin) % CAESAR MATLAB code for caesar.fig % CAESAR, by itself, creates a new CAESAR or raises the existing % singleton*. % % H = CAESAR returns the handle to a new CAESAR or the handle to % the existing singleton*. % % CAESAR('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in CAESAR.M with the given input arguments. % % CAESAR('Property','Value',...) creates a new CAESAR or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before caesar_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to caesar_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help caesar % Last Modified by GUIDE v2.5 17-May-2022 09:16:10 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @caesar_OpeningFcn, ... 'gui_OutputFcn', @caesar_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % --- Executes just before caesar is made visible. function caesar_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to caesar (see VARARGIN) % Choose default command line output for caesar handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes caesar wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = caesar_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; function plaintext_Callback(hObject, eventdata, handles) % hObject handle to plaintext (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of plaintext as text % str2double(get(hObject,'String')) returns contents of plaintext as a double % --- Executes during object creation, after setting all properties. function plaintext_CreateFcn(hObject, eventdata, handles) % hObject handle to plaintext (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function k_Callback(hObject, eventdata, handles) % hObject handle to k (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of k as text % str2double(get(hObject,'String')) returns contents of k as a double % --- Executes during object creation, after setting all properties. function k_CreateFcn(hObject, eventdata, handles) % hObject handle to k (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function result_Callback(hObject, eventdata, handles) % hObject handle to result (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of result as text % str2double(get(hObject,'String')) returns contents of result as a double % --- Executes during object creation, after setting all properties. function result_CreateFcn(hObject, eventdata, handles) % hObject handle to result (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end % --- Executes on button press in enc_caesar. function enc_caesar_Callback(hObject, eventdata, handles) % hObject handle to enc_caesar (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) k=str2num(get(handles.k,'string')) plaintext=get(handles.plaintext,'string') for i= 1:length(plaintext) %once he found a space, skip this iteration, ASCII of space=32 if (plaintext(i)==32) plaintext(i)=32-k; end Ciphertext(i)=plaintext(i)+k; if Ciphertext(i) >122 Ciphertext(i)=Ciphertext(i)-26; end end Ciphertext=upper(char(Ciphertext)) set(handles.result,'string', Ciphertext) % --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) k=str2num(get(handles.k,'string')) ciphertext=get(handles.ciphertext,'string') for i= 1:length(ciphertext) %once he found a space, skip this iteration, ASCII of space=32 if (ciphertext(i)==32) ciphertext(i)=(32-(23-k))-3; end %using addition to find cipherletter "using ASCII code for letters" %A=65 , Z=90 plaintext(i)=ciphertext(i)-k; if plaintext(i) <65 plaintext(i)=plaintext(i)+26; end end plaintext=lower(char(plaintext)); set(handles.result,'string', plaintext) function ciphertext_Callback(hObject, eventdata, handles) % hObject handle to ciphertext (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of ciphertext as text % str2double(get(hObject,'String')) returns contents of ciphertext as a double % --- Executes during object creation, after setting all properties. function ciphertext_CreateFcn(hObject, eventdata, handles) % hObject handle to ciphertext (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all Cre