forked from lix-project/lix
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. |
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| .. | ||
| lang | ||
| add.sh | ||
| binary-cache.sh | ||
| binary-patching.nix | ||
| binary-patching.sh | ||
| build-hook.hook.sh | ||
| build-hook.nix | ||
| build-hook.sh | ||
| check-refs.nix | ||
| check-refs.sh | ||
| common.sh.in | ||
| config.nix.in | ||
| dependencies.builder0.sh | ||
| dependencies.builder1.sh | ||
| dependencies.builder2.sh | ||
| dependencies.nix | ||
| dependencies.sh | ||
| export-graph.nix | ||
| export-graph.sh | ||
| export.sh | ||
| fallback.sh | ||
| fetchurl.nix | ||
| fetchurl.sh | ||
| filter-source.nix | ||
| filter-source.sh | ||
| fixed.builder1.sh | ||
| fixed.builder2.sh | ||
| fixed.nix | ||
| fixed.sh | ||
| gc-concurrent.builder.sh | ||
| gc-concurrent.nix | ||
| gc-concurrent.sh | ||
| gc-concurrent2.builder.sh | ||
| gc-runtime.nix | ||
| gc-runtime.sh | ||
| gc.sh | ||
| hash-check.nix | ||
| hash.sh | ||
| import-derivation.nix | ||
| import-derivation.sh | ||
| init.sh | ||
| install-package.sh | ||
| lang.sh | ||
| logging.sh | ||
| Makefile.am | ||
| misc.sh | ||
| multiple-outputs.nix | ||
| multiple-outputs.sh | ||
| negative-caching.nix | ||
| negative-caching.sh | ||
| nix-build.sh | ||
| nix-channel.sh | ||
| nix-copy-closure.nix | ||
| nix-profile.sh | ||
| nix-pull.sh | ||
| nix-push.sh | ||
| optimise-store.sh | ||
| parallel.builder.sh | ||
| parallel.nix | ||
| parallel.sh | ||
| referrers.sh | ||
| remote-builds.nix | ||
| remote-store.sh | ||
| secure-drv-outputs.nix | ||
| secure-drv-outputs.sh | ||
| simple.builder.sh | ||
| simple.nix | ||
| simple.sh | ||
| substituter.sh | ||
| substituter2.sh | ||
| substitutes.sh | ||
| substitutes2.sh | ||
| timeout.builder.sh | ||
| timeout.nix | ||
| timeout.sh | ||
| user-envs.builder.sh | ||
| user-envs.nix | ||
| user-envs.sh | ||
| verify.sh | ||