我想加密一条消息，例如“ HELO1234” ，然后解密以获取原始消息。我已经在matlab中编写了无法正常工作的RSA代码。
参数计算
temp=1;
range=1:10;
k=isprime(range)
prime_mat=range(find(k))
p=randsample(prime_mat,1);
q=randsample(prime_mat,1);
if(p~=q)
n=p*q;
phi_n=(p-1)*(q-1);
u=1:phi_n -1;
end
while temp
enckey=randsample(u,1);
deckey=randsample(u,1);
if(enckey~=deckey)
if(gcd(enckey,phi_n)~=1 ...
&& gcd(deckey,phi_n)~=1 ...
&&gcd(enckey*deckey,phi_n)~=1)
temp=1;
else
temp=0;
end
end
end
加密过程
char t= 'hello123';
t=uint8(t);
len=length(t)
pow=[];
cipher_text=[];
for i=1:len
pow=[pow;t(i).^(enckey)]; %each element of the pt matrix(plain text) is raised to the power of encryption key(enc_key) and stored in pow matrix(power matrix)
cipher_text=[cipher_text;mod(pow(i),n)];% cipher text is calculate
d
加密过程的输出
k =
0 1 1 0 1 0 1 0 0 0
prime_mat =
2 3 5 7
p =
7
q =
2
n =
14
enckey =
5
甲板=
1
phi_n =
6
len =
28
cipher_text =
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
解密过程
plain_text=[];
pow1=[];
len1=length(cipher_text);
for i=1:len
pow1=[pow1;cipher_text(i).^(deckey)]
plain_text=[plain_text;mod(pow1(i),n)]
uint8(纯文字);
