From: couturie <couturie@extinction>
Date: Thu, 17 Aug 2017 17:19:40 +0000 (+0200)
Subject: new
X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/commitdiff_plain/fda7e703f6e7ddec74c5c6eb2e44cdc393804bc3?ds=sidebyside;hp=--cc

new
---

fda7e703f6e7ddec74c5c6eb2e44cdc393804bc3
diff --git a/Chaotic_code/Convert_Sbox_Bin.m b/Chaotic_code/Convert_Sbox_Bin.m
deleted file mode 100644
index d473e2e..0000000
--- a/Chaotic_code/Convert_Sbox_Bin.m
+++ /dev/null
@@ -1,9 +0,0 @@
-function Bin_Sbox  =Convert_Sbox_Bin(Sbox)
-Bin_Sbox=zeros(256,8);
-for it=1:256
-    Bin_Sbox(it,:)=byte2bit(Sbox(it));
-    %double(dec2bin(Sbox(it),8))-48;
-    %byte2bit
-end
-
-
diff --git a/Chaotic_code/Dynamickeygenerationnew.m b/Chaotic_code/Dynamickeygenerationnew.m
deleted file mode 100644
index 32a3155..0000000
--- a/Chaotic_code/Dynamickeygenerationnew.m
+++ /dev/null
@@ -1,53 +0,0 @@
-function [RK,Sbox,Pbox]=Dynamickeygenerationnew(Secretkey,counter,strh,h)
-x=java.security.MessageDigest.getInstance(strh);
-x.update(bitxor(Secretkey,counter));
-DK=double(typecast(x.digest,'uint8'));
-M=sqrt(h*8);
-%%%%%%%%%%%% Creation of P-box (blocks permutation)%%%%%%%%%%%%%%%%%%%%%%%%
-% construction of P-box
-
-%Pbox=PermutationCat(Keyp,M);
-
-Qp=8*h;
-Ap=1:Qp;
-Keyp=reshape((DK(1:1:16)),1,[]);
-Keyp=mod(Keyp,Qp)+1;
-
-Pbox=supboxvector2(Ap,Qp,Keyp)
-
-
-
-% construction of S-box
-Q=2^8;
-A=1:Q;
-KS=reshape(DK(17:32),1,[]);
-Sbox=supboxvector2(A,Q,KS)-1;
-
-%%%%%%%%%%%%%%%% Construction of round keys%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
-r=4;
-X=reshape(DK(33:48),1,[]);
-X=double(typecast(uint8(X),'uint32'))
-P=reshape(DK(49:end),1,[]);
-P=double(typecast(uint8(P),'uint32'))
-N=2^32;
-m=ceil(h/4)
-RK= roundKeyiterations(X,P,N,r,Sbox,m);
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %%%%%%%%%%%%% creation of IV (block of h bits) can be employ for CBC, CFB, OFB, CTR mode %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  
-% s_rk=rc4key(DK(17:1:32));
-% IV=reshape(prga( s_rk,h^2),h,h);
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %%%%%%%%%%%%%%%%%%%%creation of the diffusion matrix%%%%%%%%%%%%%%%%%%%%%%%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% sc2=rc4key(DK(end-16:end));
-% outd=prga( sc2,(h^2)/4);
-% A=reshape(outd,h/2,h/2);
-% In=eye(h/2,h/2);
-% if (kindd==0)
-% G=[A A+In; A-In A ];
-% else
-%  A=mod(A,2);
-%  G=[A        bitxor(A,In) ; bitxor(A,In) A];      
-% end
\ No newline at end of file
diff --git a/Chaotic_code/bit2byte.m b/Chaotic_code/bit2byte.m
deleted file mode 100644
index b1d9fed..0000000
--- a/Chaotic_code/bit2byte.m
+++ /dev/null
@@ -1,18 +0,0 @@
-function y = bit2byte(x)
-% y = bit2byte(x)
-% Transform a number of bits into a number of bytes.
-
-x = double(x);
-
-x_n = numel(x);
-if rem(x_n,8)
-    x = [x zeros(1,8-rem(x_n,8))];
-end
-y = zeros(1,ceil(x_n/8));
-y_index = 1;
-v = 2.^(0:7);
-for i=1:8:x_n
-    y(y_index) = sum(x(i+7:-1:i).*v);
-    y_index = y_index + 1;
-end
-y = uint8(y);
diff --git a/Chaotic_code/byte2bit.m b/Chaotic_code/byte2bit.m
deleted file mode 100644
index 2a79021..0000000
--- a/Chaotic_code/byte2bit.m
+++ /dev/null
@@ -1,15 +0,0 @@
-function y = byte2bit(x)
-% y = byte2bit(x)
-% Transform a number of bytes into a number of bits.
-
-x_n=numel(x);
-y=zeros(1,x_n*8);
-y_index=1;
-for i=1:x_n
-    for j=8:-1:1
-%         for j=1:8
-        y(y_index+8-j) = bitget(x(i),j);
-    end
-    y_index = y_index + 8;
-end
-y = uint8(y);
diff --git a/Chaotic_code/decryptionprocess2.m b/Chaotic_code/decryptionprocess2.m
deleted file mode 100644
index 8b5024c..0000000
--- a/Chaotic_code/decryptionprocess2.m
+++ /dev/null
@@ -1,32 +0,0 @@
-function dimg =decryptionprocess(img,h,RK,Inv_SubBytes,Inv_Pbox,r)
-%%%%%%%%%%%%%% convert image to a vector seq
-%seq=double(reshape(img,1,[]));
-seq_bin=double(byte2bit(uint8(img))) ;
-decr_seq_binary=zeros(1,length(seq_bin));
-%%%%%%%%%%%%%%%%%%%% calculate the number of blocks%%%%%%%%%%%%%%%%%%%%%%%%
-nb= floor(length(seq_bin)/(8*h));
-RK_bin=double(reshape(byte2bit(RK),r,[]));
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%% Convert S-box to binary representation to avoid repeat the
-%%%%%%%%%%% byte2bit conversion
-Bin_Sbox  =double(Convert_Sbox_Bin(Inv_SubBytes));
-%%%%%%%%%%%%%%%%%%%% Applied the confusion process (r rounds)
-for it=1:nb
-     temp=seq_bin((it-1)*8*h+1:it*h*8);
-    for itr=r:-1:1       
-        temp= temp(Inv_Pbox);
-        temp=reshape(Bin_Sbox (double(bit2byte(temp))+1,:)',1,[]);
-       % double(byte2bit(Inv_SubBytes(double(bit2byte(temp))+1)));
-        %
-%         size(temp)
-        %byte2bit(Inv_SubBytes(double(bit2byte(temp))+1));
-        %temp= Inv_SubBytes(temp+1);
-        temp=bitxor(temp,RK_bin(itr,1:h*8));   
-    end
-    decr_seq_binary((it-1)*8*h+1:it*h*8)=temp;
-end
-
-% Convert to Byte representation
-
-%valbin=reshape(valbin,Tb/8,8);
-dimg=uint8(bit2byte(decr_seq_binary));
\ No newline at end of file
diff --git a/Chaotic_code/decryptionprocess2_CBC.m b/Chaotic_code/decryptionprocess2_CBC.m
deleted file mode 100644
index 176c956..0000000
--- a/Chaotic_code/decryptionprocess2_CBC.m
+++ /dev/null
@@ -1,42 +0,0 @@
-function dimg =decryptionprocess2_CBC(img,h,RK,Inv_SubBytes,Inv_Pbox,r,IV)
-%%%%%%%%%%%%%% convert image to a vector seq
-%seq=double(reshape(img,1,[]));
-seq_bin=double(byte2bit(uint8(img))) ;
-decr_seq_binary=zeros(1,length(seq_bin));
-%%%%%%%%%%%%%%%%%%%% calculate the number of blocks%%%%%%%%%%%%%%%%%%%%%%%%
-nb= floor(length(seq_bin)/(8*h));
-RKB=byte2bit(RK);
-RKB=RKB(1:r*h*8);
-%RK_bin=double(reshape(byte2bit(RK),r,[]));
-RK_bin=double(reshape(RKB,r,[]));
-%RK_bin=double(reshape(byte2bit(RK),r,[]));
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%% Convert S-box to binary representation to avoid repeat the
-%%%%%%%%%%% byte2bit conversion
-Bin_Sbox  =double(Convert_Sbox_Bin(Inv_SubBytes));
-
-iv=[];
-for i=1:h
-    iv=[iv byte2bit(IV(i))];
-end
-IV=double(iv);
-
-
-%%%%%%%%%%%%%%%%%%%% Applied the confusion process (r rounds)
-for it=1:nb
-     temp=seq_bin((it-1)*8*h+1:it*h*8);
-     temp_IV=temp;
-    for itr=r:-1:1       
-        temp= temp(Inv_Pbox);
-        temp=reshape(Bin_Sbox (double(bit2byte(temp))+1,:)',1,[]);
-        temp=bitxor(temp,RK_bin(itr,1:h*8));   
-    end
-    temp=bitxor(temp,IV);
-    decr_seq_binary((it-1)*8*h+1:it*h*8)=temp;
-    IV= temp_IV;
-end
-
-% Convert to Byte representation
-
-%valbin=reshape(valbin,Tb/8,8);
-dimg=uint8(bit2byte(decr_seq_binary));
\ No newline at end of file
diff --git a/Chaotic_code/encryptionprocess2.m b/Chaotic_code/encryptionprocess2.m
deleted file mode 100644
index 08a8966..0000000
--- a/Chaotic_code/encryptionprocess2.m
+++ /dev/null
@@ -1,25 +0,0 @@
-function eimg =encryptionprocess(img,h,RK,SubBytes,Pbox,r)
-%%%%%%%%%%%%%% convert image to a vector seq
-%seq=double(reshape(img,1,[]));
-seq_bin=double(byte2bit(uint8(img))) ;
-encr_seq_binary=zeros(1,length(seq_bin));
-%%%%%%%%%%%%%%%%%%%% calculate the number of blocks%%%%%%%%%%%%%%%%%%%%%%%%
-nb= floor(length(seq_bin)/(8*h));
-RK_bin=double(reshape(byte2bit(RK),r,[]));
-Bin_Sbox  =double((Convert_Sbox_Bin(SubBytes)));
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%% Applied the confusion process then the bits permutation for r rounds
-for it=1:nb
-      temp=seq_bin((it-1)*8*h+1:it*8*h);
-    for itr=1:r
-        temp=bitxor(temp,RK_bin(itr,1:h*8));    
-        temp= (reshape(Bin_Sbox (double(bit2byte(temp))+1,:)',1,[]));
-        temp= temp(Pbox);
-    end
-    encr_seq_binary((it-1)*8*h+1:it*h*8)=temp;
-end
-
-% Convert to Byte representation
-
-%valbin=reshape(valbin,Tb/8,8);
-eimg=(bit2byte(  encr_seq_binary));
\ No newline at end of file
diff --git a/Chaotic_code/encryptionprocess2_CBC.m b/Chaotic_code/encryptionprocess2_CBC.m
deleted file mode 100644
index c79b7ab..0000000
--- a/Chaotic_code/encryptionprocess2_CBC.m
+++ /dev/null
@@ -1,39 +0,0 @@
-function eimg =encryptionprocess2_CBC(img,h,RK,SubBytes,Pbox,r,IV)
-%%%%%%%%%%%%%% convert image to a vector seq
-%seq=double(reshape(img,1,[]));
-seq_bin=double(byte2bit(uint8(img))) ;
-encr_seq_binary=zeros(1,length(seq_bin));
-%%%%%%%%%%%%%%%%%%%% calculate the number of blocks%%%%%%%%%%%%%%%%%%%%%%%%
-nb= floor(length(seq_bin)/(8*h));
-RKB=byte2bit(RK);
-RKB=RKB(1:r*h*8);
-%RK_bin=double(reshape(byte2bit(RK),r,[]));
-RK_bin=double(reshape(RKB,r,[]));
-Bin_Sbox  =double((Convert_Sbox_Bin(SubBytes)));
-%iv=zeros(1,8*h);
-%iv(end-h+1:end)=IV;
-%IV=iv;
-iv=[];
-for i=1:h
-    iv=[iv byte2bit(IV(i))];
-end
-IV=double(iv);
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%% Applied the confusion process then the bits permutation for r rounds
-for it=1:nb
-    temp=seq_bin((it-1)*8*h+1:it*8*h);
-    temp=bitxor(temp,IV);
-    for itr=1:r
-        temp=bitxor(temp,RK_bin(itr,1:h*8));    
-        temp= (reshape(Bin_Sbox (double(bit2byte(temp))+1,:)',1,[]));
-        temp= temp(Pbox);
-    end
-    encr_seq_binary((it-1)*8*h+1:it*h*8)=temp;
-    IV=temp;
-end
-
-% Convert to Byte representation
-
-%valbin=reshape(valbin,Tb/8,8);
-eimg=(bit2byte(  encr_seq_binary));
\ No newline at end of file
diff --git a/Chaotic_code/inverse_tables.m b/Chaotic_code/inverse_tables.m
deleted file mode 100644
index 9e0ee28..0000000
--- a/Chaotic_code/inverse_tables.m
+++ /dev/null
@@ -1,7 +0,0 @@
-function inv_perm_tabs= inverse_tables(tab)
-le=length(tab);
-inv_perm_tabs=zeros(1,le);
-for ir = 1 :le
-    inv_perm_tabs(tab(ir)+1) = ir-1 ;
-end
-
diff --git a/Chaotic_code/inverse_tables2.m b/Chaotic_code/inverse_tables2.m
deleted file mode 100644
index 802d6ea..0000000
--- a/Chaotic_code/inverse_tables2.m
+++ /dev/null
@@ -1,8 +0,0 @@
-function inv_perm_tabs= inverse_tables2(tab)
-tab2=reshape(tab,1,[]);
-le=length(tab2);
-inv_perm_tabs=zeros(1,le);
-for ir = 1 :le
-    inv_perm_tabs(tab2(ir)) = ir ;
-end
-%inv_perm_tabs=reshape(inv_perm_tabs,size(tab,1),size(tab,2));
diff --git a/Chaotic_code/lena512.bmp b/Chaotic_code/lena512.bmp
deleted file mode 100644
index 5641e75..0000000
Binary files a/Chaotic_code/lena512.bmp and /dev/null differ
diff --git a/Chaotic_code/lenna.bmp b/Chaotic_code/lenna.bmp
deleted file mode 100644
index d78becd..0000000
Binary files a/Chaotic_code/lenna.bmp and /dev/null differ
diff --git a/Chaotic_code/lenna512.bmp b/Chaotic_code/lenna512.bmp
deleted file mode 100644
index d78becd..0000000
Binary files a/Chaotic_code/lenna512.bmp and /dev/null differ
diff --git a/Chaotic_code/main2.m b/Chaotic_code/main2.m
deleted file mode 100644
index cc4f3ac..0000000
--- a/Chaotic_code/main2.m
+++ /dev/null
@@ -1,79 +0,0 @@
-%clear all
-%close all
-%clc
-
-
-
-%%%%%%%%%%%%%%%% Input data%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-[filename, pathname] = uigetfile( {'*.bmp';}, 'Pick a file');
-name=[ pathname filename];
-data=imread(name);
-%data=imresize(data,[64 64])
-
-h=2;% number of bytes in a block (Tb=h*8)
-r=4;% number of rounds
-sk=16 % number of byes in a block cipher
-strh='SHA-512';
-%  mode=0==> ECB, 
-%  mode 1==> CBC
-
-mode=1
-
-
-
-% calculate the length of data
-SI=size(data);
-%len=SI(1)*SI(2)*SI(3);
-%lenBits=len*8;
-%data_line=reshape(double(data),1,len); 
-
-figure()
-imshow(uint8(data));
-
-%%%%%%%%%%%%%%%%% Key generation%%%%%%%%%%%%%%%%%%%%%%%%
-Secretkey=floor(rand(1,sk)*256);
-counter=floor(rand(1,sk)*256);
-%%%%%%%%%%%%%%%%%%%%%%%%%Creation of cipher layer's%%%%%%%%%%%%%%%%%%%%
-[RK,Sbox,Pbox]=Dynamickeygenerationnew(Secretkey,counter,strh,h);
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%% Change in data block%%%%%%%%%%%%%%%%%%%%%%%% 
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Encryption Process%%%%%%%%%%%%%%%%%%%%%
-tic
-if mode==0
-eimg =encryptionprocess2(data,h,RK,Sbox,Pbox,r);
-elseif mode==1
-IV=double(floor(rand(1,h)*256));  
-eimg =encryptionprocess2_CBC(data,h,RK,Sbox,Pbox,r,IV);       
-end
-
-toc
-eimg2=reshape(eimg,size(data));
-
-figure()
-imshow(uint8(eimg2));
-
-%%%%%%%%%%%%%%%%%%%%% Decryption Side%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%% calculate the inverse substitution and diffusion
-%%%%%%%%%%%%%%%%%%%% layer%%%%%%%%%%%%%%%%
- Inv_Sbox= inverse_tables(Sbox);
- Inv_Pbox= inverse_tables2(Pbox);
- 
- 
- if mode==0
- dimg =decryptionprocess2(eimg,h,RK,Inv_Sbox,Inv_Pbox,r);
-elseif mode==1
-
- dimg =decryptionprocess2_CBC(eimg,h,RK,Inv_Sbox,Inv_Pbox,r,IV);      
- end
-
-%  tic
-%  dimg =decryptionprocess2(eimg,h,RK,Inv_Sbox,Inv_Pbox,r);
-%  toc
- dimg=reshape(dimg,size(data));
- figure()
- imshow(uint8(dimg));
- 
diff --git a/Chaotic_code/roundKeyiterations.m b/Chaotic_code/roundKeyiterations.m
deleted file mode 100644
index 564078a..0000000
--- a/Chaotic_code/roundKeyiterations.m
+++ /dev/null
@@ -1,18 +0,0 @@
-function RK=roundKeyiterations (X,P, N,r,Sbox,m)
-% DIfferent size of input block
-%m=1;
-RK=zeros(r,4*m);
-for itr=1:r
-    for itm=1:m
-   y=skewtententierperturbed(X(itr),P(itr),N)
-  %Y(i)=double(typecast(y,'uint8'))
-  op=double(typecast(uint32(y),'uint8'))
-    opd(1)=bitxor(bitxor(op(1),op(2)),op(3));
-    opd(2)=bitxor(bitxor(op(1),op(2)),op(4));
-    opd(3)=bitxor(bitxor(op(1),op(4)),op(3));
-    opd(4)=bitxor(bitxor(op(4),op(2)),op(3));
-    opd=Sbox(opd+1);
-  RK(itr,(itm-1)*4+1:itm*4)=opd(:);
-   X(itr)=y;
-    end
-end
\ No newline at end of file
diff --git a/Chaotic_code/skewtententierperturbed.m b/Chaotic_code/skewtententierperturbed.m
deleted file mode 100644
index afacc73..0000000
--- a/Chaotic_code/skewtententierperturbed.m
+++ /dev/null
@@ -1,9 +0,0 @@
-function y=skewtententierperturbed(x,p,Q)
-% x : initial condition
-% p: control parameter
-% N:precision
-if x<=p
-       y=ceil(Q*(x/p));
-    else 
-    y=floor(Q*((Q-x)/(Q-p)))+1;
-end
diff --git a/Chaotic_code/supboxvector2.m b/Chaotic_code/supboxvector2.m
deleted file mode 100644
index 34acd09..0000000
--- a/Chaotic_code/supboxvector2.m
+++ /dev/null
@@ -1,12 +0,0 @@
-function x=supboxvector2(x,Q,p)
-% r=1 for each parameters
-y=zeros(1,Q);
-for i=1:length(p)
-%for w=1:r
-dinf=find (x<=p(1,i));
-dsup=find (x>p(1,i));
-y(dinf)=ceil((Q*x(dinf))./p(1,i));
-y(dsup)=floor((Q*(Q-x(dsup)))./(Q-p(1,i)))+1;  
-x=y;
-%end
-end