From: Jonas Schnelli <dev@jonasschnelli.ch>
To: bitcoin-dev@lists.linuxfoundation.org, achow101@gmail.com
Subject: Re: [bitcoin-dev] What is OpenSSL still used for?
Date: Thu, 21 Jan 2016 08:42:56 +0100 [thread overview]
Message-ID: <56A08C00.8020403@jonasschnelli.ch> (raw)
In-Reply-To: <CADToNK--p5FBxCKXGbab4sa_uOkWL=GxcNKA8f6Dgcz+NE0BMg@mail.gmail.com>
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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outdated – relevant PRs: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
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next prev parent reply other threads:[~2016-01-21 7:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 1:39 [bitcoin-dev] What is OpenSSL still used for? Andrew C
2016-01-19 3:58 ` Ethan Heilman
2016-01-21 2:57 ` Douglas Roark
2016-01-21 7:42 ` Jonas Schnelli [this message]
2016-01-25 11:58 ` Wladimir J. van der Laan
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