Yoni Hassin
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 Jan 7 accepted Break double encryption Jan 7 comment Break double encryption It will take $O(2^{2n-m})$ but with low (non neglectable) probability, while using $n$ entries will have very high probability (almost 1). Jan 7 revised Break double encryption added 2 characters in body Jan 7 revised Break double encryption added 191 characters in body Jan 6 comment Break double encryption @PaĆ­loEbermann , Do you think I should edit my question so it will not look like an homework assignment but more like a cryptographic problem? Jan 6 revised Break double encryption added 7 characters in body Jan 6 revised Break double encryption added 2 characters in body Jan 6 asked Break double encryption Dec 30 awarded Scholar Dec 30 awarded Supporter Dec 30 accepted What do $0^n$ and $1^n$ mean in cryptography? Dec 30 comment What do $0^n$ and $1^n$ mean in cryptography? @AFS Thank you! that is what i wanted to know. Please write it as a separate answer so i will be able to accept it and rate it. Can you explain why different strings are needed? What is the concept that is being achieved with different strings? Dec 29 revised What do $0^n$ and $1^n$ mean in cryptography? added 47 characters in body Dec 29 awarded Editor Dec 29 revised What do $0^n$ and $1^n$ mean in cryptography? added 154 characters in body Dec 29 comment What do $0^n$ and $1^n$ mean in cryptography? I will try to rewrite the question so it will be more clear. Dec 29 awarded Student Dec 28 comment What do $0^n$ and $1^n$ mean in cryptography? Why always in cryptography $1^k$ and $0^k$ are used? do they have a symbolic value? that the part that confuses me. Dec 28 comment What do $0^n$ and $1^n$ mean in cryptography? yeah but what is the meaning of those strings inside the above equation? why $0^k$ and not $0^{k-1}$1 ? Dec 28 asked What do $0^n$ and $1^n$ mean in cryptography?