1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
Return-Path: <dev@jonasschnelli.ch>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
[172.17.192.35])
by mail.linuxfoundation.org (Postfix) with ESMTPS id 95555D28
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 21 Jan 2016 07:51:39 +0000 (UTC)
X-Greylist: delayed 00:08:41 by SQLgrey-1.7.6
Received: from server3 (server3.include7.ch [144.76.194.38])
by smtp1.linuxfoundation.org (Postfix) with ESMTP id DCF2CA8
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 21 Jan 2016 07:51:38 +0000 (UTC)
Received: by server3 (Postfix, from userid 115)
id C06FC2E60537; Thu, 21 Jan 2016 08:42:55 +0100 (CET)
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
smtp1.linux-foundation.org
X-Spam-Level:
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, FSL_HELO_NON_FQDN_1
autolearn=ham version=3.3.1
Received: from Jonass-MacBook-Pro.local (cable-static-140-182.teleport.ch
[87.102.140.182]) by server3 (Postfix) with ESMTPSA id 2FFCA2D00751;
Thu, 21 Jan 2016 08:42:55 +0100 (CET)
To: bitcoin-dev@lists.linuxfoundation.org, achow101@gmail.com
References: <CADToNK--p5FBxCKXGbab4sa_uOkWL=GxcNKA8f6Dgcz+NE0BMg@mail.gmail.com>
From: Jonas Schnelli <dev@jonasschnelli.ch>
X-Enigmail-Draft-Status: N1110
Message-ID: <56A08C00.8020403@jonasschnelli.ch>
Date: Thu, 21 Jan 2016 08:42:56 +0100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0)
Gecko/20100101 Thunderbird/38.4.0
MIME-Version: 1.0
In-Reply-To: <CADToNK--p5FBxCKXGbab4sa_uOkWL=GxcNKA8f6Dgcz+NE0BMg@mail.gmail.com>
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 8bit
Subject: Re: [bitcoin-dev] What is OpenSSL still used for?
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Bitcoin Development Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Thu, 21 Jan 2016 07:51:39 -0000
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Hi Andrew
> In the release notes for 0.12, it says that we have moved from
> using OpenSSL to libsecp256k1 for signature validation. So what
> else is it being used for that we need to keep it as a dependency?
Openssl was dropped from the consensus layer (ECC) in 0.12, though, it
still used for...
1) ... getting random numbers (randomize the ECC signing context)
2) [wallet only] ... AES256 encryption of private keys
3) [GUI only] ... SSL/X.509 for BIP70 (payment protocol)
Openssl dependency for 1) and 2) could be removed. There are some –
outdated – relevant PRs:
Entropy: https://github.com/bitcoin/bitcoin/pull/5885
AES: https://github.com/bitcoin/bitcoin/pull/5949
I guess for point 3) [BIP70] it makes sense to keep openssl.
/jonas
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=4GfM
-----END PGP SIGNATURE-----
|
