script generate commands

1 files changed, 69 insertions, 0 deletions

diff --git a/scripts/generate.sh b/scripts/generate.sh
new file mode 100755
index 0000000..2535bdc
--- /dev/null
+++ b/scripts/generate.sh
@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+#set -x  # uncomment to debug
+set -o errtrace
+set -o nounset
+set -o pipefail
+
+umask 077
+
+export LC_ALL="C"
+
+export GNUPGHOME=$(mktemp -d -t $(date +%Y.%m.%d)-XXXX)
+
+cd "${GNUPGHOME}" ; pwd
+
+export IDENTITY="YubiKey User <yubikey@example.domain>"
+
+export KEY_TYPE="rsa4096"
+
+export KEY_EXPIRATION="2027-05-01"
+
+export CERTIFY_PASS=$(LC_ALL=C tr -dc "A-Z2-9" < /dev/urandom | \
+    tr -d "IOUS5" | \
+    fold  -w  ${PASS_GROUPSIZE:-4} | \
+    paste -sd ${PASS_DELIMITER:--} - | \
+    head  -c  ${PASS_LENGTH:-29})
+
+echo "$CERTIFY_PASS" | \
+    gpg --batch --passphrase-fd 0 \
+        --quick-generate-key "$IDENTITY" "$KEY_TYPE" cert never
+
+export KEYID=$(gpg -k --with-colons "$IDENTITY" | \
+    awk -F: '/^pub:/ { print $5; exit }')
+
+export KEYFP=$(gpg -k --with-colons "$IDENTITY" | \
+    awk -F: '/^fpr:/ { print $10; exit }')
+
+printf "\nKey ID: %40s\nKey FP: %40s\n\n" "$KEYID" "$KEYFP"
+
+for SUBKEY in sign encrypt auth ; do \
+    echo "$CERTIFY_PASS" | \
+        gpg --batch --pinentry-mode=loopback --passphrase-fd 0 \
+            --quick-add-key "$KEYFP" "$KEY_TYPE" "$SUBKEY" "$KEY_EXPIRATION"
+done
+
+gpg -K
+
+echo "$CERTIFY_PASS" | \
+    gpg --output $GNUPGHOME/$KEYID-Certify.key \
+        --batch --pinentry-mode=loopback --passphrase-fd 0 \
+        --armor --export-secret-keys $KEYID
+
+echo "$CERTIFY_PASS" | \
+    gpg --output $GNUPGHOME/$KEYID-Subkeys.key \
+        --batch --pinentry-mode=loopback --passphrase-fd 0 \
+        --armor --export-secret-subkeys $KEYID
+
+gpg --output $GNUPGHOME/$KEYID-$(date +%F).asc \
+    --armor --export $KEYID
+
+export LUKS_PASS=$(LC_ALL=C tr -dc "A-Z2-9" < /dev/urandom | \
+    tr -d "IOUS5" | \
+    fold  -w  ${PASS_GROUPSIZE:-4} | \
+    paste -sd ${PASS_DELIMITER:--} - | \
+    head  -c  ${PASS_LENGTH:-29})
+
+printf "CERTIFY PASS: \n$CERTIFY_PASS\n\n"
+
+printf "LUKS PASS:\n$LUKS_PASS\n\n"