Re: [bitcoin-dev] What is OpenSSL still used for?
> > 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 outdated – relevant PRs: 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. Exactly - the plan is that OpenSSL will, in due time, be a dependency only if the GUI is enabled. Most of the work for that is already done but it has to be made up to date and carefully tested and integrated. Wladimir ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
Re: [bitcoin-dev] What is OpenSSL still used for?
-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 There are some – outdated – relevant PRs: Entropy: https://github.com/bitcoin/bitcoin/pull/5885 AES: https://github.com/bitcoin/bitcoin/pull/5949 I guess for point 3) [BIP70] it makes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 iQIcBAEBCAAGBQJWoIwAAAoJECnUvLZBb1PsWSMP/2VyURcUUmnFodX1UUkkTQSu KmEMqRe3Ak1v4B5S+7raodYE+7ePONedHrciUgNfj0GBDu7/5Wl3LD0GnFb0//Nl JEHPzNQB8xhRjhXux17rq+Kf60qjc+uybJQDDs9KfQQYS+hFTUKXX61s7wwY/QAy 6Vi5FxZRThzFUFWFZvG9KbRLWEbBVONnXLaA4pB0o7UnU2wAHkmPP5wyeCJLy3cW uggeLYh3X6GBF/+IQ0ndO4yFJ09ROXBS7N1VisJy2Z4zTJr0y6rAVVG9XcPtlkMc SvMULeiB34odvlZMRMFdCYLHCuff30jN2+aEJST/d+lr4IB2ai8veXwt69yya4p2 4UUL5ueOzKWfgcxVT/qDDcVkZJFqrhdHmMaEggelRakQCSdLly+4X7Mdo/Dx/RC2 PYUDQVGGFephTpzBTQ3fpRGtZu2JX45T2RKyF2qcVlzXrRW7SjqzwGWWuutwbbrS V9cSMMVS7NU90mgCE4e3G2oqi40H8dOzg+opf5ynChEccgJwUlxrfjj4kJbQZRH1 X00tGeVs93MxQes+vacYq7VYX4pzM1kiU3EMNStyAvCzd8FbGxmiv3C1VKhRj3xK Oo98Yg18OBL2jQCWHza3nOU5jN8AnjlkXNvrqsaGedjVNirlnR6a+qmklNIiY1lE kBxMbfAhTLPY3ukqtaSh =4GfM -END PGP SIGNATURE- ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
Re: [bitcoin-dev] What is OpenSSL still used for?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 2016/1/18 19:58, Ethan Heilman via bitcoin-dev wrote: > I believe libsecp256k1 just performs Elliptic Curve operations > required by Bitcoin. OpenSSL is used for all other crypto. The exact answer, as I understand it, is a bit more nuanced. In particular, you referenced the PRNG. I believe libsecp256k1, as currently written, relies on an implementation of RFC 6979 instead of using a PRNG. I'm guessing this is done for portability reasons (no need to hook into the OS's RNG). Otherwise, yes, I believe this answer is basically correct. There are still some crypto functions not covered by libsecp256k1, at least at the API level. But, for consensus-critical functionality, I think 0.12 will be rid of OpenSSL. - -- - --- Douglas Roark Cryptocurrency, network security, travel, and art. https://onename.com/droark joro...@vt.edu PGP key ID: 26623924 -BEGIN PGP SIGNATURE- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJWoEkTAAoJEEOBHRomYjkkoR0QAKmvgmoOdCw7SLP9cFURltXw Ro8mOfikjp04C6tsshtiKQ1+jq80wBhioVYIL7XiyNU7ZUNdAWSc/wGBCG+YkMeQ 6h02WJZQtTe0PvGVHIgUw6SiV4ZzXBuapXQX0BgEl0pInvQkRRqWtgrqDlWbqJVg NKzm8Kh+c8JUHEKbhnC45Jgh2JYHpyXcByLHSyGYsPOprjHmsupCPC6qydrRnuaO r7YHtObK2myOglJ1h6BXir//+XNbk6RiRNf5voONNAR9L+69BBV7hMVVO3eiDZ12 vrNaOIKhDjhDs1kmkFYi7ML/zKBQRXlb7iM8AEpfCUKl/zK9bSNeblP4ZBGPqjCm 9TGCqGjmKEbg7AYXjyMvmw+jZReediJMNYpCdxaSJi+XJZO6EC28pcKsb6pu/9gX NCLf1T/f2NoyXxc57aTuHNo0SnVaee1z0+IlGSh+5foxhZGbFmPhxOy3WNIubuou tm0guAXloCCERwVg0OhhQ3YyrlOWz7VnUrT8cteQC+yP353zdnxay7ZmQh9swcyR VX7yu4xLcxgbQmBIhMyKs9iQnycOrdNhZEfGx4vQ2ZKAj1CPVqrgKxbtY3KuPfvb YAzfs/iXaqBHH7FN9juLMRGqkzyVzJ9mIsFyLldADvSoc8RSa1IQiZtfPsIU1w1i UKEl9Qasje80EojNZNz0 =glL2 -END PGP SIGNATURE- ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
Re: [bitcoin-dev] What is OpenSSL still used for?
I believe libsecp256k1 just performs Elliptic Curve operations required by Bitcoin. OpenSSL is used for all other crypto. For instance the PRNG appears to be OpenSSL: https://github.com/bitcoin/bitcoin/blob/master/src/random.h On Mon, Jan 18, 2016 at 8:39 PM, Andrew C via bitcoin-dev wrote: > 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? > > Thanks, > Andrew > > ___ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
[bitcoin-dev] What is OpenSSL still used for?
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? Thanks, Andrew ___ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
