I am a beginner in cryptography. I studied many time pad attack and now I want to solve a popular exercise, It consists 11 ciphertexts (s1,s2,...,s11), that encrypted by a same key and I want to find plaintext(p11) of s11. I know:
p10 ⊕ k = s10 p11 ⊕ k = s11 p10 ⊕ p11 = s10 ⊕ s11
Now, what should I do for getting p11? If assume k = s10 ⊕ s11, so:
s11 ⊕ k = p11
s11 ⊕ (s10 ⊕ s11) = p11
. Is it correct?