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Re: [Taler] Exporting coins out of the wallet plugin

From: Sree Harsha Totakura
Subject: Re: [Taler] Exporting coins out of the wallet plugin
Date: Fri, 21 Jul 2017 15:00:36 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

On 07/21/2017 01:52 PM, Marcello Stanisci wrote:
> With this feature in place, there is no way to be 100% sure
> about wallet's 'abdication' on exported coins.  In other words,
> since "owning a coin" means owning a private key, we cannot be sure
> that the wallet actually removes that private key from disk, after
> coin exportation.
> So the coins sharing must always occur between trusted parties.  Unless,
> and some "crypto person" may help here, the wallet can export some
> "refresh permission" on the exported coins so that the person that gets
> it can obatin new private keys for the coin she received from wallet 
> exportation.

The coin export only works between trusted parties.  In fact, the
refresh protocol ensures that if you know the private key of a coin, you
will also know the private key of the refreshed coin.


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