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Sep
19
comment Inverting the encryption equation of a symmetric cipher
let us continue this discussion in chat
Sep
19
comment Inverting the encryption equation of a symmetric cipher
Thanks again @Richie. Where did you get the figure of 18446744073709551616 from? The original part is XORd though isn't it or am I wrong in my edited post with XORing the binary?
Sep
19
comment Inverting the encryption equation of a symmetric cipher
When the sum of what hits 264? How can binary values of 0 and 1 equal 264 (meant to read as small 64 but unable to type these on phone)
Sep
19
revised Inverting the encryption equation of a symmetric cipher
clarification
Sep
18
comment Inverting the encryption equation of a symmetric cipher
Thanks @Richie although still confused somewhat. I've edited my original question to clarify things
Sep
15
awarded  Editor
Sep
15
revised Inverting the encryption equation of a symmetric cipher
clarification
Sep
15
comment Inverting the encryption equation of a symmetric cipher
Thanks @rath. Yes, I'm sure as to what "addition mod 2⁶⁴" does in this function. As far as I can understand, the equation means "the ciphertext is equal to the plaintext being XOR'd by the value of the leftmost 64 bits of the secret key and then this value is then XOR'd again with the value of the rightmost 64 bits of the secret key. Am I reading it correctly?
Sep
15
awarded  Student
Sep
15
asked Inverting the encryption equation of a symmetric cipher