<div dir="ltr">Who encrypted this file?</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 28 Mar 2019 at 13:48, B Da Bahia <<a href="mailto:bidabahia@gmail.com">bidabahia@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hello list,</div><div>I'm looking for a cryptographic algorithm to solve the following problem:</div><div>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.</div><div>Could anyone provide useful references to explore?</div><div>thanks in advance!</div><div><br></div></div>
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