DOKK / manpages / debian 12 / nix-bin / nix3-key-convert-secret-to-public.1.en
nix3-key-convert-secret-to-public(1) General Commands Manual nix3-key-convert-secret-to-public(1)

Warning: This program is experimental and its interface is subject to change.

nix key convert-secret-to-public - generate a public key for verifying store paths from a secret key read from standard input

nix key convert-secret-to-public [option…]

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Convert a secret key to a public key:

# echo cache.example.org-0:E7lAO+MsPwTFfPXsdPtW8GKui/5ho4KQHVcAGnX+Tti1V4dUxoVoqLyWJ4YESuZJwQ67GVIksDt47og+tPVUZw== \
| nix key convert-secret-to-public
cache.example.org-0:tVeHVMaFaKi8lieGBErmScEOuxlSJLA7eO6IPrT1VGc=

This command reads a Ed25519 secret key from standard input, and writes the corresponding public key to standard output. For more details, see nix key generate-secret (./nix3-key-generate-secret.md).