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i am applying Arnold's transform on the pixels

Hi, I am writing a code for the following transformation T[x;y]=[x+y:x+2y] the code is n=256; I=imread('fruit1.bmp'); Red=...

environ un an ago | 1 answer | 0

Question

Fibonacci sequence up to first 256 elements

I want to generate first 256 fibonacci sequence elments . the code is repeating a fixed number after some terms, I think that we...

environ un an ago | 2 answers | 0

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how to concatinate fibonacci sequence

Hi I want to write matlab code for fibonacci wordswhichis like s(0)=0, s(1)=01, s(2)=010, s(3)=01001.... using formula s(n)=s(...

environ un an ago | 1 answer | 0

Question

index exceeds matrix dim

I am working on 3d image encryption using 8 cross8 matrix. where image size is 256 256*3. portion of the code is attached. Can s...

environ un an ago | 0 answers | 0

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How to get coloured layer from an rgb image in matlab.

Hi. I want to extract all three layers from rgb colour image.For red layer i want it is red colour and similarly for green layer...

environ un an ago | 1 answer | 0

Answered

loop for image encryption gives error

As i m also trying to do some thing with the code. here is the complete code.It gives me an encrypted image but y size is double...

loop for image encryption gives error

As i m also trying to do some thing with the code. here is the complete code.It gives me an encrypted image but y size is double...

environ un an ago | 0

Question

loop for image encryption gives error

I am using 8*8 matrix for image encryption but there is an error in loop which i cannot figure out why. Km=[K11 K12;K21 K22];%...

environ un an ago | 2 answers | 0

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How to apply pc1 in matlab and get answer in 56 bit keys

I want to apply pc1 in my matlab code and answer required is in binary form but i am getting decimal number. Can some one help m...

plus d'un an ago | 1 answer | 0

Question

I am studing DES key generation but do not know what does seed means in the code given below

I am praticing with the key generation of DES.Is it possible to generate my own key. What is seed in the code given below. f...

plus d'un an ago | 0 answers | 0

Question

Can i fit a loop in my code

Hi i want to reduce the code size by using loops. I have used elliptic curves for generating the keys and i need 16 session key...

plus d'un an ago | 0 answers | 0

Question

How to use loop in my code for key generation

Hi. i want to generate 16 sub keys .Algorithm is as follows K=[k1, k2, k3, k4]%initial key and are points on elliptic curve. f...

plus d'un an ago | 1 answer | 0

Question

I want to double all the points on the elliptic curves in matlab

I want to double all the points on the elliptic curves .I have written a code but it gives error. Matrix A contains few points ...

plus d'un an ago | 1 answer | 0