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From: Andreas Schildbach <andreas@schildbach.de>
To: bitcoin-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for Light Clients
Date: Mon, 19 Jun 2017 22:49:17 +0200	[thread overview]
Message-ID: <oi9dc8$iv3$1@blaine.gmane.org> (raw)
In-Reply-To: <CAKEeUhha8FMYqO79veAyZyg0Cc6S-_1a4=k4=6WdC7+Juk1A1Q@mail.gmail.com>

Most SPV wallets make it quite clear that unconfirmed transactions are
just that.


On 06/19/2017 06:36 PM, adiabat via bitcoin-dev wrote:
> This has been brought up several times in the past, and I agree with
> Jonas' comments about users being unaware of the privacy losses due to
> BIP37.  One thing also mentioned before but not int he current thread
> is that the entire concept of SPV is not applicable to unconfirmed
> transactions.  SPV uses the fact that miners have committed to a
> transaction with work to give the user an assurance that the
> transaction is valid; if the transaction were invalid, it would be
> costly for the miner to include it in a block with valid work.
> 
> Transactions in the mempool have no such assurance, and are costlessly
> forgeable by anyone, including your ISP.  I wasn't involved in any
> debate over BIP37 when it was being written up, so I don't know how
> mempool filtering got in, but it never made any sense to me.  The fact
> that lots of lite clients are using this is a problem as it gives
> false assurance to users that there is a valid but yet-to-be-confirmed
> transaction sending them money.
> 
> -Tadge
> 




  reply	other threads:[~2017-06-19 20:49 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-01 19:01 [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for Light Clients Olaoluwa Osuntokun
2017-06-01 21:00 ` Eric Lombrozo
2017-06-01 21:33 ` Matt Corallo
2017-06-01 22:10   ` Olaoluwa Osuntokun
2017-06-02  2:15     ` Chris
2017-06-02  2:28       ` Gregory Maxwell
2017-06-02  3:35         ` Alex Akselrod
2017-06-02 16:07         ` Chris Pacia
2017-06-02  4:49 ` Olaoluwa Osuntokun
2017-06-09  3:59   ` Olaoluwa Osuntokun
2017-11-09 23:44     ` Olaoluwa Osuntokun
2017-06-02  6:00 ` Karl Johan Alm
     [not found]   ` <CAE0pnx+RRAP269VeWAcxKbrcS9qX4LS8_6nY_js8X5NtQ22t_A@mail.gmail.com>
     [not found]     ` <CAE0pnxLKYnwHnktTqW949s1AA9uK=6WnVYWmRoau8B1SszzYEg@mail.gmail.com>
     [not found]       ` <CAE0pnxJxHYQ4+2pt3tt=1WZ0-K0vDxGB4KBXY+R=WfktMmATwA@mail.gmail.com>
2017-06-02 17:55         ` Alex Akselrod
2017-06-05  2:06           ` Karl Johan Alm
2017-06-09  3:03             ` Olaoluwa Osuntokun
2017-06-07 21:41 ` Gregory Maxwell
2017-06-09  3:42   ` Olaoluwa Osuntokun
2017-06-09  4:47     ` Olaoluwa Osuntokun
2017-06-08  9:50 ` Tomas
2017-06-09  3:50   ` Olaoluwa Osuntokun
2017-06-09  8:26     ` Tomas
2017-06-19 11:58 ` Andreas Schildbach
2017-06-19 12:26   ` bfd
2017-06-19 15:15     ` Tom Zander
2017-06-19 15:49       ` Jonas Schnelli
2017-06-19 15:59         ` Andreas Schildbach
2017-06-19 16:22           ` Jonas Schnelli
2017-06-19 16:36             ` adiabat
2017-06-19 20:49               ` Andreas Schildbach [this message]
2017-06-20  7:03             ` Eric Voskuil
2017-06-19 16:07         ` Tom Zander
2017-06-19 16:30           ` Jonas Schnelli
2017-06-19 16:38             ` Tom Zander
2017-06-19 15:43     ` Andreas Schildbach
2017-06-19 16:10       ` Jonas Schnelli
2017-06-19 22:41     ` Gregory Maxwell
2017-06-20  9:52       ` Tom Zander
2017-06-20 13:08         ` bfd
2017-06-20 17:20           ` Adam Back

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