From: Gregory Maxwell <greg@xiph•org>
To: Bitcoin Dev <bitcoin-dev@lists•linuxfoundation.org>
Subject: [bitcoin-dev] Fwd: The first successful Zero-Knowledge Contingent Payment
Date: Fri, 26 Feb 2016 23:23:09 +0000 [thread overview]
Message-ID: <CAAS2fgTLE6SH1wa_0orfuYoPeu5pasumbTW446KAyGwDaGEcHA@mail.gmail.com> (raw)
In-Reply-To: <CAAS2fgT8RE7w87Yv9Be7arH-xGCtwcq0Ynbk21ZVpqJZrEN5EQ@mail.gmail.com>
On Fri, Feb 26, 2016 at 11:06 PM, Sergio Demian Lerner
<sergio.d.lerner@gmail•com> wrote:
> Congratulations!
>
> It a property of the SKCP system that the person who performed the trusted
> setup cannot extract any information from a proof?
>
> In other words, is it proven hard to obtain information from a proof by the
> buyer?
Yes, the secrecy is information theoretic (assuming no implementation
bugs); beyond the truth of the outcome. This holds even if the
initialization is malicious.
The soundness of this scheme is computational-- we're trusting a deep
stack of cryptographic assumptions that the proofs cannot be forged.
next prev parent reply other threads:[~2016-02-26 23:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 21:42 [bitcoin-dev] " Gregory Maxwell
2016-02-26 23:06 ` Sergio Demian Lerner
[not found] ` <CAAS2fgT8RE7w87Yv9Be7arH-xGCtwcq0Ynbk21ZVpqJZrEN5EQ@mail.gmail.com>
2016-02-26 23:23 ` Gregory Maxwell [this message]
2016-02-26 23:33 ` Tier Nolan
2016-02-26 23:45 ` Gregory Maxwell
2016-02-26 23:56 ` Tier Nolan
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