71 lines
2.4 KiB
Text
71 lines
2.4 KiB
Text
# git-remote-gcrypt
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# Copyright 2013 by Ulrik Sverdrup
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# License: GPLv2 or any later version, see http://www.gnu.org/licenses/
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# Use GnuPG to use encrypted git remotes
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WARNING: This is a proof of concept
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WARNING: Repository format WILL change, incompatibly
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INTRODUCTION
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Install as `git-remote-gcrypt` in $PATH
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Supports local, ssh:// and sftp:// remotes at the moment,
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as well as the special gitception://<giturl> remote type::
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git config --global gcrypt.recipients KEYID1
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git remote add gcryptrepo gcrypt::ssh://hostname.com:MyNewRepo
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( or maybe:
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git remote add gcryptrepo gcrypt::gitception://git://host.com/repo.git
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)
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git push --all gcryptrepo
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CONFIGURATION
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* You must set up a small gpg keyring for the repository::
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gpg --export KEYID1 > <path-to-keyring>
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git config gcrypt.keyring <path-to-keyring>
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New repositories will be created to allow access for the keys in
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`gcrypt.keyring`. The keyring is used to verify the authenticity of the
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repository when it is read or written to.
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* Set `git config gcrypt.signmanifest 1` to also sign the manifest (the
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list of branches and packfiles) when pushing.
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* Set `git config gcrypt.requiresign 1` to fail and stop if no valid
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signature is found on the manifest.
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* NOTE: We use the users gnupg configuration for cipher-algo and so on!
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Configure your gnupg to use a strong crypto -- see `man gpg`.
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REPOSITORY FORMAT
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* masterkey is first signed, then encrypted using `gpg -e` with hidden
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recipients
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* manifest contains the branches and the list of packfiles
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$ cd MyCryptedRemote
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$ ls
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-rw-- 11K 00ef27cc2c5b76365e1a46479ed7429e16572c543cdff0a8bf745c7c
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-rw-- 41K b934d8d6c0f48e71b9d7a4d5ea56f024a9bed4f6f2c6f8e688695bee
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-rw-- 577 manifest
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-rw-- 495 masterkey
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$ gpg -d masterkey | gpg --passphrase-fd 0 -d manifest
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-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA512
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b4a4a39365d19282810c19d0f3f24d04dd2d179f refs/tags/something
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1d323ddadf4cf1d80fced447e637ab3766b168b7 refs/heads/master
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pack :SHA224:00ef27cc2c5b76365e1a46479ed7429e16572c543cdff0a8bf745c7c
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pack :SHA224:b934d8d6c0f48e71b9d7a4d5ea56f024a9bed4f6f2c6f8e688695bee
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-----BEGIN PGP SIGNATURE-----
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Version: GnuPG v1.4.12 (GNU/Linux)
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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XXXXX
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-----END PGP SIGNATURE-----
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