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From: Kalle Rosenbaum <kalle@rosenbaum.se>
Date: Mon, 8 Oct 2018 20:59:00 +0200
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Subject: Re: [bitcoin-dev] [BIP Proposal] Nym Enrolment Transaction Template
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Hi =D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=B0=D0=B2,
I won't comment on the usability of/need for this system, but I have a few
random comments and questions:
Why demand exactly one input? This will probably cause problems for wallets
with many small value UTXOs and no big.
Why demand exactly type p2wpkh on input? Why limit at all?
32-byte-nym_public_key is actually 33 bytes, no? Compressed pubkeys are 33
bytes.
Why verify "SIZE 32 EQUALVERIFY" on output 2? It puts a ceiling on the
entropy, but no floor, so it seems useless.
Why require segwit version 0 change output? This seems like an unnecessary
limitation.
It's not clear to me what's IsStandard rules and what's nym protocol rules
in the specification section. I interpret the specification to specify
IsStandard rules, but the section also mentions stuff not relevant to that,
for example how the nym signature is constructed and what the opreturn data
consists of. You should make the distinction more clear.
I couldn't find info on what 1-byte-nym_version and 1-byte-nym_use are and
how they are used. But it might not belong in the BIP if it only should
describe IsStandard policies?
Regards,
Kalle
Sent from my Sinclair ZX81
Den s=C3=B6n 7 okt. 2018 05:57=D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=B0=D0=
=B2 via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> skrev:
> Hello list,
>
> I would like to propose a draft BIP that takes the next available
> transaction version number and defines a new transaction template. This
> proposal does not have any consensus changes, and is purely for the
> application layer of Bitcoin. The new transaction template defines a
> special transaction structure that can be used as a cryptographic pseudon=
ym.
>
> I hope the community will find this proposal useful and will find time to
> give it careful review.
>
> Here is the first BIP within our project
> https://github.com/veleslavs/bips/blob/bip_nym_tx/bip-nym_tx.mediawiki
>
> I would like to thank the entire team that has supported me in creating
> this proposal.
>
> =D0=A1 =D0=BD=D0=B0=D0=B8=D0=BB=D1=83=D1=87=D1=88=D0=B8=D0=BC=D0=B8 =D0=
=BF=D0=BE=D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=8F=D0=BC=D0=B8,
> =D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=B0=D0=B2
>
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
--0000000000008708930577bc37d4
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto">Hi =D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=B0=D0=B2,=C2=
=A0<div dir=3D"auto"><br></div><div dir=3D"auto">I won't comment on the=
usability of/need for this system, but I have a few random comments and qu=
estions:</div><div dir=3D"auto"><div dir=3D"auto"><br></div><div dir=3D"aut=
o">Why demand exactly one input? This=C2=A0<span style=3D"font-family:sans-=
serif">will probably cause problems for wallets with many small value UTXOs=
and no big.=C2=A0</span></div><div dir=3D"auto"><span style=3D"font-family=
:sans-serif"><br></span></div><div dir=3D"auto">Why demand exactly type p2w=
pkh on input? Why limit at all?=C2=A0</div><div dir=3D"auto"><br></div><div=
dir=3D"auto">32-byte-nym_public_key is actually 33 bytes, no? Compressed p=
ubkeys are 33 bytes.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"aut=
o">Why verify "SIZE 32 EQUALVERIFY" on output 2? It puts a ceilin=
g on the entropy, but no floor, so it seems useless.<br></div><div dir=3D"a=
uto"><br></div><div dir=3D"auto">Why require segwit version 0 change output=
? This seems like an unnecessary limitation.=C2=A0</div><div dir=3D"auto"><=
br></div><div dir=3D"auto">It's not clear to me what's IsStandard r=
ules and what's nym protocol rules in the specification section. I inte=
rpret the specification to specify IsStandard rules, but the section also m=
entions stuff not relevant to that, for example how the nym signature is co=
nstructed and what the opreturn data consists of. You should make the disti=
nction more clear.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto"=
><span style=3D"font-family:sans-serif">I couldn't find info on what 1-=
byte-nym_version and 1-byte-nym_use are and how they are used. But it might=
not belong in the BIP if it only should describe IsStandard policies?=C2=
=A0</span><br></div><div dir=3D"auto"><br></div><div dir=3D"auto">Regards,=
=C2=A0</div><div dir=3D"auto">Kalle=C2=A0</div><br><div data-smartmail=3D"g=
mail_signature" dir=3D"auto">Sent from my Sinclair ZX81</div></div></div><b=
r><div class=3D"gmail_quote"><div dir=3D"ltr">Den s=C3=B6n 7 okt. 2018 05:5=
7=D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=B0=D0=B2 via bitcoin-dev <<a hr=
ef=3D"mailto:bitcoin-dev@lists.linuxfoundation.org">bitcoin-dev@lists.linux=
foundation.org</a>> skrev:<br></div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"color:rgb(85,85,85);font-family:Arial,"Helvetica Neue",H=
elvetica,sans-serif;font-size:14px;font-style:normal;font-variant-caps:norm=
al;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0p=
x;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:n=
one">Hello list,<br></div><div style=3D"color:rgb(85,85,85);font-family:Ari=
al,"Helvetica Neue",Helvetica,sans-serif;font-size:14px;font-styl=
e:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;=
text-align:start;text-indent:0px;text-transform:none;white-space:normal;wor=
d-spacing:0px;text-decoration:none"><br></div><div style=3D"color:rgb(85,85=
,85);font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font=
-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;le=
tter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;wh=
ite-space:normal;word-spacing:0px;text-decoration:none">I would like to pro=
pose a=C2=A0draft BIP that takes the next available transaction version num=
ber and defines a new transaction template. This proposal does not have any=
consensus changes, and is purely for the application layer of Bitcoin. The=
new transaction template defines a special transaction structure that can =
be used as a cryptographic pseudonym.<br></div><div style=3D"color:rgb(85,8=
5,85);font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;fon=
t-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;l=
etter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;w=
hite-space:normal;word-spacing:0px;text-decoration:none"><br></div><div sty=
le=3D"color:rgb(85,85,85);font-family:Arial,"Helvetica Neue",Helv=
etica,sans-serif;font-size:14px;font-style:normal;font-variant-caps:normal;=
font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;t=
ext-transform:none;white-space:normal;word-spacing:0px;text-decoration:none=
">I hope the community will find this proposal useful and will find time to=
give it careful review.<br></div><div style=3D"color:rgb(85,85,85);font-fa=
mily:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:14px;f=
ont-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing=
:normal;text-align:start;text-indent:0px;text-transform:none;white-space:no=
rmal;word-spacing:0px;text-decoration:none"><br></div><div style=3D"color:r=
gb(85,85,85);font-family:Arial,"Helvetica Neue",Helvetica,sans-se=
rif;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:n=
ormal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform=
:none;white-space:normal;word-spacing:0px;text-decoration:none">Here is the=
first BIP within our project<br></div><div style=3D"color:rgb(85,85,85);fo=
nt-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:1=
4px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-sp=
acing:normal;text-align:start;text-indent:0px;text-transform:none;white-spa=
ce:normal;word-spacing:0px;text-decoration:none"><a href=3D"https://github.=
com/veleslavs/bips/blob/bip_nym_tx/bip-nym_tx.mediawiki" rel=3D"noreferrer =
nofollow noopener noreferrer" style=3D"background-color:transparent" target=
=3D"_blank">https://github.com/veleslavs/bips/blob/bip_nym_tx/bip-nym_tx.me=
diawiki</a><br></div><div style=3D"color:rgb(85,85,85);font-family:Arial,&q=
uot;Helvetica Neue",Helvetica,sans-serif;font-size:14px;font-style:nor=
mal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-=
align:start;text-indent:0px;text-transform:none;white-space:normal;word-spa=
cing:0px;text-decoration:none"><br></div><div style=3D"color:rgb(85,85,85);=
font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size=
:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-=
spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-s=
pace:normal;word-spacing:0px;text-decoration:none">I would like to thank th=
e entire team that has supported me in creating this proposal.<br></div><di=
v style=3D"color:rgb(85,85,85);font-family:Arial,"Helvetica Neue"=
,Helvetica,sans-serif;font-size:14px;font-style:normal;font-variant-caps:no=
rmal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:=
0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration=
:none"><br></div><div style=3D"color:rgb(85,85,85);font-family:Arial,"=
Helvetica Neue",Helvetica,sans-serif;font-size:14px;font-style:normal;=
font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-alig=
n:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing=
:0px;text-decoration:none">=D0=A1 =D0=BD=D0=B0=D0=B8=D0=BB=D1=83=D1=87=D1=
=88=D0=B8=D0=BC=D0=B8 =D0=BF=D0=BE=D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=
=8F=D0=BC=D0=B8,<br></div><div style=3D"color:rgb(85,85,85);font-family:Ari=
al,"Helvetica Neue",Helvetica,sans-serif;font-size:14px;font-styl=
e:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;=
text-align:start;text-indent:0px;text-transform:none;white-space:normal;wor=
d-spacing:0px;text-decoration:none">=D0=92=D0=B5=D0=BB=D0=B5=D1=81=D0=BB=D0=
=B0=D0=B2<br></div><div class=3D"m_2257638885878747020protonmail_signature_=
block"><div class=3D"m_2257638885878747020protonmail_signature_block-proton=
m_2257638885878747020protonmail_signature_block-empty"><br></div></div><di=
v><br></div>_______________________________________________<br>
bitcoin-dev mailing list<br>
<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank" =
rel=3D"noreferrer">bitcoin-dev@lists.linuxfoundation.org</a><br>
<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
rel=3D"noreferrer noreferrer" target=3D"_blank">https://lists.linuxfoundati=
on.org/mailman/listinfo/bitcoin-dev</a><br>
</blockquote></div>
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