Shamir sharing scheme to split the key in two. Send your half to the other one to let them decrypt it.
David Sent from my iPhone > On Mar 28, 2019, at 3:36 PM, Ben Laurie <[email protected]> wrote: > > Who encrypted this file? > >> On Thu, 28 Mar 2019 at 13:48, B Da Bahia <[email protected]> wrote: >> Hello list, >> I'm looking for a cryptographic algorithm to solve the following problem: >> Alice and Bob (untrusting partners) want to cooperate to open an encrypted >> file located at either one's computer. No party should be able to open it >> without the other party's consent. No trusted third parties are allowed to >> intervene in the protocol. >> Could anyone provide useful references to explore? >> thanks in advance! >> >> _______________________________________________ >> Messaging mailing list >> [email protected] >> https://moderncrypto.org/mailman/listinfo/messaging > _______________________________________________ > Messaging mailing list > [email protected] > https://moderncrypto.org/mailman/listinfo/messaging
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