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

To avoid new commits upon cert renewal.

9 files changed, 117 insertions, 285 deletions

diff --git a/certs/gencerts.sh b/certs/gencerts.sh
index b1f56c2..81a27fc 100755
--- a/certs/gencerts.sh
+++ b/certs/gencerts.sh
@@ -21,7 +21,7 @@ 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"
@@ -29,7 +29,7 @@ x509fpr() {
         [ "$typ" = mdwn ] || echo -n '  '
         echo -n "$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/"
 }
 
@@ -109,7 +109,7 @@ 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 ,
 
@@ -138,8 +138,8 @@ 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").
 
diff --git a/certs/public/fripost.org.pem b/certs/public/fripost.org.pem
index 19aff7b..48298e0 100644
--- a/certs/public/fripost.org.pem
+++ b/certs/public/fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
-MIIGHTCCBQWgAwIBAgISA8TJDGMExy2Ixic0gI7OIpJpMA0GCSqGSIb3DQEBCwUA
-MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+v2aysgc2sLHNKlsOzBScg0UCAwEAAQ==
+-----END PUBLIC KEY-----
diff --git a/certs/public/git.fripost.org.pem b/certs/public/git.fripost.org.pem
index b586a50..289261a 100644
--- a/certs/public/git.fripost.org.pem
+++ b/certs/public/git.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/imap.fripost.org.pem b/certs/public/imap.fripost.org.pem
index 77f5140..8481196 100644
--- a/certs/public/imap.fripost.org.pem
+++ b/certs/public/imap.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/lists.fripost.org.pem b/certs/public/lists.fripost.org.pem
index 9220fa9..0e520ad 100644
--- a/certs/public/lists.fripost.org.pem
+++ b/certs/public/lists.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/mail.fripost.org.pem b/certs/public/mail.fripost.org.pem
index 6666353..c6852f6 100644
--- a/certs/public/mail.fripost.org.pem
+++ b/certs/public/mail.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/mx1.fripost.org.pem b/certs/public/mx1.fripost.org.pem
index 80d5cdc..d2b978c 100644
--- a/certs/public/mx1.fripost.org.pem
+++ b/certs/public/mx1.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/mx2.fripost.org.pem b/certs/public/mx2.fripost.org.pem
index 67a569d..3bdb105 100644
--- a/certs/public/mx2.fripost.org.pem
+++ b/certs/public/mx2.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----
diff --git a/certs/public/smtp.fripost.org.pem b/certs/public/smtp.fripost.org.pem
index 918da83..fa89958 100644
--- a/certs/public/smtp.fripost.org.pem
+++ b/certs/public/smtp.fripost.org.pem
@@ -1,35 +1,14 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
+-----BEGIN PUBLIC KEY-----
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+-----END PUBLIC KEY-----