# Tag Info

1

In general, you cannot encode information such that "any variance at all in the inputs causes the decoded secret to be completely useless." That's because there's a generic attack that can be used to reconstruct the secret with a high probability, given almost enough enough information to uniquely determine it, as long as the correct secret can somehow be ...

2

With SSS you are sharing field elements, so if the secret to be shared is larger than one field element, you are going to have to break up the secret somehow and share the parts. I am not aware of any standard method that allows you to make the sharings dependent on one another. Probably the best way is to encrypt the secret with a key and then share the key ...

4

A simple partial explanation addressing your "random value added", too long for a comment. This works well for the trivial case of two shares: Given a secret $x$, split it into $r$ and $x-r$, where $r$ is a random number. Having both shares, you can get the secret by as their sum. Having only one share, you can do nothing at all, assuming there are no ...

2

Shamir's secret sharing is based on mathematical splitting but not string splitting (as in programming languages) . So a key share cannot be considered same as partial key . Also the security is information-theoretic but not computational meaning no amount of computational power can reveal the complete secret if less than threshold secret shares are ...

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