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$Id$
(Public domain.)
How to update TeX Live distribution signing key
===============================================
This must be done every year! It's not optional.
shut down networking service
cp gpg directory from USB stick to computer
export GNUPGHOME=...<COPY OF USBSTICK gpg directory>
export KEYID=0xC78B82D8C79512F79CC0D7C80D5E5D9106BAB6BC
gpg --edit-key $KEYID
> key 2
# selects the expiring key, check!
> expire
> 16m
# choose something after the release of the next TL
> save
# export public key for import into svn and TUG account
gpg -a --export $KEYID > texlive.asc
# update USB drive with new stuff, remove from home,
rm -rf $GNUPGHOME
unset GNUPGHOME
gpg --send-keys $KEYID
# update TeX Live repository
export GNUPGHOME=/home/texlive/Master/tlpkg/gpg # wherever svn checkout
# use gpg version 1 here!!!
gpg1 --import texlive.asc
svn commit
# on the TUG server (needs the exported public key in
# texlive.asc, see above how to export it)
gpg --homedir /home/texlive/.gnupg --import texlive.asc
# can view that .asc with:
gpg --homedir /home/texlive/.gnupg texlive.asc
# update web-accessible public key, keeping old files but updating symlink:
cp texlive.asc ~www/texlive/files/texlive`date +%Y`.asc
ln -s texlive`date +%Y`.asc ~www/texlive/files/texlive.asc
More info:
. tlgpg runs a gpg command with the above TL .gnupg directory, etc.
. tl-sign-file (uses tlgpg) is used to sign texlive.tlpdb.sha512.
. tlgpg-verify foo[.asc] will check for expired key, per below.
tl-sign-file uses this to make sure it is not signing with an expired key.
. (tl)gpg foo.asc will sometimes report expiration info.
. given files updated in Master/tlpkg/gpg, can export into asc:
gpg --homedir ..../Master/tlpkg/gpg --export -a 0x0D5E5D9106BAB6BC >tl.asc
. gpg --verify --verbose foo.asc reports some info.
. but exit status is zero even with expired keys; to check,
use --status-file and inspect:
gpg --verify --verbose --status-file=/tmp/st foo.asc
. see tlgpg, tl-sign-file, TLCrypto.pm for full implementation.
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