nix-super/doc/manual/source/command-ref/nix-store/generate-binary-cache-key.md

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# Name
`nix-store --generate-binary-cache-key` - generate key pair to use for a binary cache
## Synopsis
`nix-store` `--generate-binary-cache-key` *key-name* *secret-key-file* *public-key-file*
## Description
This command generates an [Ed25519 key pair](http://ed25519.cr.yp.to/)
that can be used to create a signed binary cache. It takes three
mandatory parameters:
1. A key name, such as `cache.example.org-1`, that is used to look up
keys on the client when it verifies signatures. It can be anything,
but its suggested to use the host name of your cache (e.g.
`cache.example.org`) with a suffix denoting the number of the key
(to be incremented every time you need to revoke a key).
2. The file name where the secret key is to be stored.
3. The file name where the public key is to be stored.
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