certs/public: fetch each cert's pubkey (SPKI), not the cert itself.

To avoid new commits upon cert renewal.

1 files changed, 5 insertions, 5 deletions

diff --git a/certs/gencerts.sh b/certs/gencerts.sh
index b1f56c2..81a27fc 100755
--- a/certs/gencerts.sh
+++ b/certs/gencerts.sh
@@ -4,49 +4,49 @@ set -ue
 PATH=/usr/bin:/bin
 
 if [ -n "${GNUPGBIN:-}" ]; then
     GPG="$GNUPGBIN"
 elif [ -x /usr/bin/gpg2 ]; then
     GPG=/usr/bin/gpg2
 else
     GPG=gpg
 fi
 GPG_OPTS='--no-auto-check-trustdb --batch --no-verbose --yes'
 
 usage() {
     echo "Usage: $0 /path/to/certs.asc" >&2
     exit 1
 }
 
 x509fpr() {
     local msg="$1" host cert h spki
     host="${msg%%,*}"; host="${host%% *}"; host="${host#\`}"
     cert="$DIR/${host%%:*}.pem"
-    spki=$(openssl x509 -noout -pubkey<"$cert" | openssl pkey -pubin -outform DER | openssl dgst -sha1  | sed -nr 's/^[^=]+=\s*//p')
+    spki=$(openssl pkey -pubin -outform DER <"$cert" | openssl dgst -sha1  | sed -nr 's/^[^=]+=\s*//p')
     [ "$typ" = mdwn ] && printf '\n    [%s](https://crt.sh/?spkisha1=%s&iCAID=16418)\n\n' "$msg" "$spki" \
                       || printf '    %s\n    X.509: https://crt.sh/?spkisha1=%s&iCAID=16418\n    SPKI:\n' \
                                 "$( echo "$msg" | tr -d '`' )" "$spki"
     for h in sha1 sha256; do
         [ "$typ" = mdwn ] || echo -n '  '
         echo -n "$h" | tr '[a-z]' '[A-Z]'
         for i in $(seq 1 $((7 - ${#h}))); do echo -n ' '; done
-        openssl x509 -noout -pubkey<"$cert" | openssl pkey -pubin -outform DER | openssl dgst -"$h" -c | sed -nr 's/^[^=]+=\s*//p'
+        openssl pkey -pubin -outform DER <"$cert" | openssl dgst -"$h" -c | sed -nr 's/^[^=]+=\s*//p'
     done | sed -r "s/(\S+)(.*)/$indent\1\U\2/"
 }
 
 sshfpr() {
     local msg="$1" host t h fpr
     host="${msg%%,*}"; host="${host%% *}"; host="${host#*@}"; host="${host#\`}"; host="${host%\`}"
     [ "$typ" = mdwn ] && { echo; echo "    $msg"; echo; } || { echo "    $msg" | tr -d '`'; }
     [ "${host#*:}" != 22 ] || host="${host%%:*}"
     for h in MD5 SHA256; do
         ssh-keygen -E "$h" -f "$DIR/../ssh_known_hosts" -lF "${host#*@}"
     done | sed -nr 's/^[^ #]+\s+//p' | sed -r 's/^(\S+)\s+(MD5|SHA256):/\1 \2 /' |
     while read t h fpr; do
         echo -n "$indent$t"
         for i in $(seq 1 $((7 - ${#h}))); do echo -n ' '; done
         echo "$h:$fpr"
     done
 }
 
 allfpr() {
     local typ="$1"
@@ -92,71 +92,71 @@ trap 'rm -f "$src" "$src2" "$asc2" "$mdwn2"' EXIT
 if [ -s "$asc" ]; then
     "$GPG" $GPG_OPTS --logger-file=/dev/null --output="$src" -- "$asc"
 fi
 
 
 # Generate ASCII file to be clearsigned
 cat >"$src2" << EOF
 The following is an up-to date list of SHA-1 and SHA-256 fingerprints of
 all SPKI (Subject Public Key Info) of each X.509 certificate Fripost
 uses on its publicly available services.  Please consider any mismatch
 as a man-in-the-middle attack, and let us know immediately! --
 admin@fripost.org
 
 
 These certificates are all issued by the Let's Encrypt Certificate
 Authority, and are submitted to Certificate Transparency logs. You can
 view all issued Let's Encrypt certificates at crt.sh:
 
     https://crt.sh/?Identity=%25fripost.org&iCAID=16418
 
-Our X.509 certificates are also available in PEM format at:
+The SPKI of our X.509 certificates are also available in PEM format at:
 
     $VCS_BROWSER/tree/certs/public ,
 
 Git repository from which this fingerprint list was generated, at commit ID
 $(git --no-pager --git-dir="$DIR/../../.git" --work-tree="$DIR" log -1 --pretty=format:'%h from %aD' -- "$DIR").
 
 
 EOF
 allfpr asc >>"$src2"
 
 
 # Generate markdown file
 cat >"$mdwn2" << EOF
 # Certificates at Fripost
 
 The following is an up-to date list of SHA-1 and SHA-256 fingerprints of
 all SPKI (Subject Public Key Info) of each X.509 certificate Fripost
 uses on its publicly available services.  Please consider any mismatch
 as a man-in-the-middle attack, and let us know immediately!  (See also
 the [signed version of this page](certs.asc).)
 -- [the admin team](mailto:admin@fripost.org)
 
 
 These certificates are all issued by the [Let's Encrypt Certificate
 Authority](https://letsencrypt.org), and are submitted to [Certificate
 Transparency logs](https://www.certificate-transparency.org).
 You can view all issued Let's Encrypt certificates at
 [crt.sh](https://crt.sh/?Identity=%25fripost.org&iCAID=16418).
-Our X.509 certificates are also available in PEM format under our
-[Git repository]($VCS_BROWSER/tree/certs/public),
+The SPKI of our X.509 certificates are also available in PEM format
+under our [Git repository]($VCS_BROWSER/tree/certs/public),
 from which this fingerprint list was [generated]($VCS_BROWSER/tree/certs/gencerts.sh), at
 $(git --no-pager --git-dir="$DIR/../../.git" --work-tree="$DIR" log -1 --pretty=format:"[Commit ID %h from %aD]($VCS_BROWSER/tree/certs/public?id=%H)" -- "$DIR").
 
 
 EOF
 allfpr mdwn >>"$mdwn2"
 echo >>"$src2"
 
 
 if diff -u --label "a/${asc%.asc}" --label "b/${asc%.asc}" -- "$src" "$src2" &&
    diff -q -- "$mdwn" "$mdwn2" >/dev/null; then
     echo 'The fingerprint list is up to date.'
 else
     "$GPG" $GPG_OPTS --output="$asc2" --clearsign -- "$src2"
     cp -f "$asc2" "$asc"
     cp -f "$mdwn2" "$mdwn"
     echo ================================ 
     echo "The fingerprint lists ($asc and $mdwn) have been updated!"
     echo '/!\ You should now push the changes to the wiki. /!\'
 fi