0fdf4da0e9
NAR info files in binary caches can now have a cryptographic signature that Nix will verify before using the corresponding NAR file. To create a private/public key pair for signing and verifying a binary cache, do: $ openssl genrsa -out ./cache-key.sec 2048 $ openssl rsa -in ./cache-key.sec -pubout > ./cache-key.pub You should also come up with a symbolic name for the key, such as "cache.example.org-1". This will be used by clients to look up the public key. (It's a good idea to number keys, in case you ever need to revoke/replace one.) To create a binary cache signed with the private key: $ nix-push --dest /path/to/binary-cache --key ./cache-key.sec --key-name cache.example.org-1 The public key (cache-key.pub) should be distributed to the clients. They should have a nix.conf should contain something like: signed-binary-caches = * binary-cache-public-key-cache.example.org-1 = /path/to/cache-key.pub If all works well, then if Nix fetches something from the signed binary cache, you will see a message like: *** Downloading ‘http://cache.example.org/nar/7dppcj5sc1nda7l54rjc0g5l1hamj09j-subversion-1.7.11’ (signed by ‘cache.example.org-1’) to ‘/nix/store/7dppcj5sc1nda7l54rjc0g5l1hamj09j-subversion-1.7.11’... On the other hand, if the signature is wrong, you get a message like NAR info file `http://cache.example.org/7dppcj5sc1nda7l54rjc0g5l1hamj09j.narinfo' has an invalid signature; ignoring Signatures are implemented as a single line appended to the NAR info file, which looks like this: Signature: 1;cache.example.org-1;HQ9Xzyanq9iV...muQ== Thus the signature has 3 fields: a version (currently "1"), the ID of key, and the base64-encoded signature of the SHA-256 hash of the contents of the NAR info file up to but not including the Signature line. Issue #75.
39 lines
1.2 KiB
Makefile
39 lines
1.2 KiB
Makefile
PERL_MODULES = lib/Nix/Store.pm lib/Nix/Manifest.pm lib/Nix/GeneratePatches.pm lib/Nix/SSH.pm lib/Nix/CopyClosure.pm lib/Nix/Config.pm.in lib/Nix/Utils.pm lib/Nix/Crypto.pm
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all: $(PERL_MODULES:.in=)
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install-exec-local: $(PERL_MODULES:.in=) install-perl-xs
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$(INSTALL) -d $(DESTDIR)$(perllibdir)/Nix
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$(INSTALL_DATA) $(PERL_MODULES:.in=) $(DESTDIR)$(perllibdir)/Nix
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if PERL_BINDINGS
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install-perl-xs:
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$(INSTALL) -d $(DESTDIR)$(perllibdir)/auto/Nix/Store
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ln -sfn $(pkglibdir)/libNixStore$(dynlib_suffix) $(DESTDIR)$(perllibdir)/auto/Nix/Store/Store$(dynlib_suffix)
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# Awful hackery to get libtool to build Perl XS bindings.
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pkglib_LTLIBRARIES = libNixStore.la
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nodist_libNixStore_la_SOURCES = lib/Nix/Store.cc
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CLEANFILES = lib/Nix/Store.cc
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libNixStore_la_LIBADD = $(top_builddir)/src/libstore/libstore.la
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AM_CXXFLAGS = \
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-I$(top_srcdir)/src -I$(top_srcdir)/src/libutil -I$(top_srcdir)/src/libstore \
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-I$(shell $(perl) -e 'use Config; print $$Config{archlibexp};')/CORE \
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-D_FILE_OFFSET_BITS=64
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lib/Nix/Store.cc: lib/Nix/Store.xs
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$(INSTALL) -d lib/Nix
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xsubpp $^ -output $@
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else
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install-perl-xs:
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endif
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EXTRA_DIST = $(PERL_MODULES) lib/Nix/Store.xs
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include ../substitute.mk
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