can someone help me in coding hash 512 algorithm?

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hello i need a hash value that provide me as decimal value from 512 bits binary value. can someone please correct my code and help me. Where my code is
data = input('enter the data:','s');
pawrd = input('enter the password:','s');
bin = double(data);
display(bin);
n = dec2base(bin,16);
display(n);
len_n = length(n);
display(len_n);
k = dec2bin(bin,8);
display(k);
pwd = dec2bin(pawrd,8)';
pwd = pwd(:)'-'0';
ln_pwd = length(pwd);
disp(ln_pwd);
pad_pwd = [pwd , ones(1,64-ln_pwd)];
A = dec2bin(data,8)';
A = A(:)'-'0';
le_a = length(A);
pad2 = dec2bin(le_a,8)';
pad2 = pad2(:)'-'0';
j = length(pad2);
dap2 = [zeros(1,128-j), pad2];
display(pad2);
display(A);
display(le_a);
x = 896-le_a;
display(x);
if x == 0
display('seq need not to be padded');
else
padarray = [ones(1,1), zeros(1,x-1)];
paddedseq = [A, padarray];
finalpad = [paddedseq, dap2];
l_paddedseq = length(finalpad);
display(l_paddedseq);
display(paddedseq);
display(finalpad);
x1 = '6A09E667F3BCC908';
x2 = 'BB67AE8584CAA73B';
x3 = '3C6EF372FE94F82B';
x4 = 'A54FF53A5F1D36F1';
x5 = '510E527FADE682D1';
x6 = '9B05688C2B3E6C1F';
x7 = '1F83D9ABFB41BD6B';
x8 = '5BE0CD19137E2179';
bx1 = base2dec(x1,16);
bx2 = base2dec(x2,16);
bx3 = base2dec(x3,16);
bx4 = base2dec(x4,16);
bx5 = base2dec(x5,16);
bx6 = base2dec(x6,16);
bx7 = base2dec(x7,16);
bx8 = base2dec(x8,16);
a = dec2bin(bx1,64);
display(a);
b = dec2bin(bx2,64);
display(b);
c = dec2bin(bx3,64);
display(c);
d = dec2bin(bx4,64);
display(d);
e = dec2bin(bx5,64);
display(e);
f = dec2bin(bx6,64);
display(f);
g = dec2bin(bx7,64);
display(g);
h = dec2bin(bx8,64);
display(h);
end
w =reshape(finalpad,16,64);
display(w);
wi = w(i, 1:64);
disp(wi);
ki = circshift(pad_pwd,1);
disp(ki);
and1 = e&f;
and2 = (~e)&g;
and3 = a&b;
and4 = a&c;
and5 = b&c;
Ch = bitxor(and1,and2);
display(and1);
display(and2);
display(Ch);
Maj1 = bitxor(and3,and4);
display(Maj1);
maj = bitxor(Maj1,and5);
display(maj);
r1 = circshift(e,[0 +14])-'0' ;
disp(r1);
r2 = circshift(e,[0 +18])-'0';
disp(r2);
r3 = circshift(e,[0 +41])-'0';
r4 = circshift(a,[0 +28])-'0';
r5 = circshift(a,[0 +34])-'0';
r6 = circshift(a,[0 +39])-'0';
r12 = bitxor(r1,r2);
r45 = bitxor(r4,r5);
sum1e = bitxor(r12,r3);
sum0a = bitxor(r45,r6);
T1 = h|Ch|wi|ki|sum1e;
disp(T1);
T2 = maj|sum0a;
disp(T2);
h = g;
disp(h);
g = f;
disp(g);
f = e;
disp(f);
e = d|T1;
disp(e);
d = c;
disp(d);
c = b;
disp(c);
b = a;
disp(b);
a = T1|T2;
disp(a);
a=a(a~='0');
disp(a);
  1 个评论
Jan
Jan 2014-11-9
If you want a correction of your code, you have to mention, what you assume to be a bug. It is impossible to find a bug based on working code only.

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