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https://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing This will answer your question.


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Optimality is actually not a well-defined term for secret sharing, and can refer to a number of different issues. First, one issue that is often considered is the size of the share that each party holds in the scheme. If the size of a party's share equals the size of the secret itself, then the secret sharing scheme is called ideal. (Formally, we don't talk ...



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