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9dfa06ffee
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Signed-off-by: cls_宁波本机 <908705107@qq.com>
47 lines
1.3 KiB
Markdown
47 lines
1.3 KiB
Markdown
# git-sign-nostr
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NIP-GS signing program — signs git commits and tags with Nostr secp256k1 keys
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using BIP-340 Schnorr signatures.
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## Usage
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```bash
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# Configure git to use nostr signing
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git config gpg.format x509
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git config gpg.x509.program /path/to/git-sign-nostr
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git config commit.gpgsign true
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git config tag.gpgsign true
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git config user.signingkey <hex-pubkey>
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# Set the private key (env var)
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export NOSTR_PRIVATE_KEY=<hex-or-nsec>
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# Optional: NIP-OA owner attestation
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export BUZZ_AUTH_TAG='["auth","<owner-pk>","<conditions>","<owner-sig>"]'
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# Commits are now automatically signed
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git commit -m "signed with nostr"
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# Verify
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git verify-commit HEAD
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```
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## Key Loading Priority
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1. `NOSTR_PRIVATE_KEY` environment variable
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2. `BUZZ_PRIVATE_KEY` environment variable
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3. Keyfile at path from `git config nostr.keyfile`
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Keys may be hex (64 chars) or NIP-19 bech32 (`nsec1...`).
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## How It Works
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Git invokes this program as a signing/verification backend:
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- **Sign:** `git-sign-nostr --status-fd=2 -bsau <keyid>` — reads payload from
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stdin, writes armored signature to stdout, status lines to fd 2 (stderr)
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- **Verify:** `git-sign-nostr --status-fd=1 --verify <sigfile> -` — reads
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payload from stdin, verifies signature from file, status lines to fd 1 (stdout)
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See [NIP-GS](../../docs/nips/NIP-GS.md) for the full specification.
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