Is GMW different from Secret Sharing?












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Is GMW (How to play ANY mental game) protocol different from Secret Sharing??
If so, how is it different from Secret sharing?






secret-sharing







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    2












    $begingroup$


    Is GMW (How to play ANY mental game) protocol different from Secret Sharing??
    If so, how is it different from Secret sharing?






    secret-sharing







    share|improve this question











    $endgroup$















      2












      2








      2





      $begingroup$


      Is GMW (How to play ANY mental game) protocol different from Secret Sharing??
      If so, how is it different from Secret sharing?






      secret-sharing







      share|improve this question











      $endgroup$




      Is GMW (How to play ANY mental game) protocol different from Secret Sharing??
      If so, how is it different from Secret sharing?






      secret-sharing




      secret-sharing






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 8 hours ago









      kelalaka

      8,01322350




      8,01322350










      asked 9 hours ago









      malleamallea

      503112




      503112






















          1 Answer
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          $begingroup$

          They are very different. GMW is a multi-party computation protocol while secret sharing is a technique to distribute a secret. GMW uses secret sharing as a building block but it also uses other primitives like an oblivious transfer (OT). GMW deals with the problem that multiple parties jointly compute a function (over their inputs) securely without revealing anything else except the final output value of the function. Note that a simple difference is that GMW does not have a particular secret distributor (well actually every party distributes secrets), as opposed to secret sharing.






          share|improve this answer









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          • $begingroup$
            @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
            $endgroup$
            – Shan Chen
            8 hours ago










          • $begingroup$
            @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
            $endgroup$
            – mikeazo
            8 hours ago










          • $begingroup$
            Thank you very much!
            $endgroup$
            – mallea
            8 hours ago











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          1 Answer
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          1 Answer
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          active

          oldest

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          4












          $begingroup$

          They are very different. GMW is a multi-party computation protocol while secret sharing is a technique to distribute a secret. GMW uses secret sharing as a building block but it also uses other primitives like an oblivious transfer (OT). GMW deals with the problem that multiple parties jointly compute a function (over their inputs) securely without revealing anything else except the final output value of the function. Note that a simple difference is that GMW does not have a particular secret distributor (well actually every party distributes secrets), as opposed to secret sharing.






          share|improve this answer









          $endgroup$













          • $begingroup$
            @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
            $endgroup$
            – Shan Chen
            8 hours ago










          • $begingroup$
            @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
            $endgroup$
            – mikeazo
            8 hours ago










          • $begingroup$
            Thank you very much!
            $endgroup$
            – mallea
            8 hours ago
















          4












          $begingroup$

          They are very different. GMW is a multi-party computation protocol while secret sharing is a technique to distribute a secret. GMW uses secret sharing as a building block but it also uses other primitives like an oblivious transfer (OT). GMW deals with the problem that multiple parties jointly compute a function (over their inputs) securely without revealing anything else except the final output value of the function. Note that a simple difference is that GMW does not have a particular secret distributor (well actually every party distributes secrets), as opposed to secret sharing.






          share|improve this answer









          $endgroup$













          • $begingroup$
            @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
            $endgroup$
            – Shan Chen
            8 hours ago










          • $begingroup$
            @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
            $endgroup$
            – mikeazo
            8 hours ago










          • $begingroup$
            Thank you very much!
            $endgroup$
            – mallea
            8 hours ago














          4












          4








          4





          $begingroup$

          They are very different. GMW is a multi-party computation protocol while secret sharing is a technique to distribute a secret. GMW uses secret sharing as a building block but it also uses other primitives like an oblivious transfer (OT). GMW deals with the problem that multiple parties jointly compute a function (over their inputs) securely without revealing anything else except the final output value of the function. Note that a simple difference is that GMW does not have a particular secret distributor (well actually every party distributes secrets), as opposed to secret sharing.






          share|improve this answer









          $endgroup$



          They are very different. GMW is a multi-party computation protocol while secret sharing is a technique to distribute a secret. GMW uses secret sharing as a building block but it also uses other primitives like an oblivious transfer (OT). GMW deals with the problem that multiple parties jointly compute a function (over their inputs) securely without revealing anything else except the final output value of the function. Note that a simple difference is that GMW does not have a particular secret distributor (well actually every party distributes secrets), as opposed to secret sharing.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 8 hours ago









          Shan ChenShan Chen

          1,680613




          1,680613












          • $begingroup$
            @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
            $endgroup$
            – Shan Chen
            8 hours ago










          • $begingroup$
            @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
            $endgroup$
            – mikeazo
            8 hours ago










          • $begingroup$
            Thank you very much!
            $endgroup$
            – mallea
            8 hours ago


















          • $begingroup$
            @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
            $endgroup$
            – Shan Chen
            8 hours ago










          • $begingroup$
            @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
            $endgroup$
            – mikeazo
            8 hours ago










          • $begingroup$
            Thank you very much!
            $endgroup$
            – mallea
            8 hours ago
















          $begingroup$
          @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
          $endgroup$
          – Shan Chen
          8 hours ago




          $begingroup$
          @mallea I would say GMW is based on secret sharing but not solely on that. OT is also a very important component of GMW, which hides the intermediate values when computing the circuit/function.
          $endgroup$
          – Shan Chen
          8 hours ago












          $begingroup$
          @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
          $endgroup$
          – mikeazo
          8 hours ago




          $begingroup$
          @mallea, well if Alice and Bob are "distributing shares" to each other, then I'd say it is definitely based on secret sharing. Note that there are 2-party computation protocols (and even >2 party computation protocols) that do not use secret sharing.
          $endgroup$
          – mikeazo
          8 hours ago












          $begingroup$
          Thank you very much!
          $endgroup$
          – mallea
          8 hours ago




          $begingroup$
          Thank you very much!
          $endgroup$
          – mallea
          8 hours ago


















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