Monday, September 7, 2015

Streisand Effect and Microsoft Windows updates

It's been told, that Microsoft behaves in a way that would imply unfamiliarity with the concept known as Streisand Effect. Although I'm not 100% sure this will help block anything, I shall leave it to the reader to discover. I did glance through the source and did not find anything amiss.

So if you want to remove and block all those nasty updates Microsoft is forcing down your throat in the name of customer experience whilst seriously invading on your privacy check out this blog and this repository on Github.

Now I'm left wondering whether this was a really effective backdooring campaign or a tool that is too effective for Microsoft's liking. At least I won't have to worry about this since none of of my systems run Windows.

Monday, January 5, 2015

Decripple OpenSSL on Fedora

I have grown tired of the travesty which is Redhat's inability to get secp256k1 enabled on the OpenSSL package. This has been a problem since 2007. That's 8 years as of now. This elliptic curve is needed for most if not all cryptocurrencies to build and run correctly. The recommended way to deal with this problem has been linking the binaries directly to a separate version of OpenSSL that people usually install from Ringing Liberty repositories. I'm now recommending that you should just patch the shipped version of OpenSSL whenever there's an update to OpenSSL available from Fedora repositories. I know this is bothersome, but it's the easiest way to deal with this issue until Redhat's lawyers get this shit sorted out whenever that may be.

First you need to get the source rpm:
yumdownloader --source --noplugins openssl

then you install the source rpm (version may and probably will differ):
rpm -ivh openssl-1.0.1j-1.fc21.src.rpm

Fetch the files, patch and build:
cd ~/rpmbuild/SPECS/
mv openssl-1.0.1j-decripple-secp256k1.patch ../SOURCES/
patch < openssl.spec.secp256k1.patch
rpmbuild -bb openssl.spec

Then replace the installed openssl-packages on your system:
cd ~/rpmbuild/RPMS/$(uname -p)
yum reinstall ./openssl-*

Now you can build bitcoind, litecoind, potcoind and so on normally by following the building instructions in the sources.
No more fiddling with LD_LIBRARY_PATH, OPENSSL_OPTIONS, LDFLAGS and so on

If you happen to walk in the vicinity of a patent office with a canister of gasoline and the desire to burn buildings, do take pictures. I'd like to hang them on my wall. If you happen to be in a position to vote for abolishing the patent system, please do so. Vote for a political candidate that promises to destroy the patent office. The patent system as it is today does nothing to promote the development of new ideas. In fact it hinders innovation.

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