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drduh 2025-04-12 10:17:18 -07:00
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scripts/reset-yubikey Normal file
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/hex
scd serialno
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 81 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 20 00 83 08 40 40 40 40 40 40 40 40
scd apdu 00 e6 00 00
scd apdu 00 44 00 00
/echo Card has been successfully reset.
/bye

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scripts/switch-to-backup-yubikey Normal file
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#!/bin/sh
#
# To make a duplicate Yubikey for GPG keys
# 1. Insert Yubikey1
# 2. Create keys/subkeys
# 3. Run keytocard to transfer keys to Yubikey1
# 4. QUIT WITHOUT SAVING!!!!!
#
# This will leave the keys on the Yubikey but NOT change the
# GPG keyring to point to the Yubikey1 with a stub
#
# 5. Insert Yubikey2
# 6. Run keytocard to transfer keys to Yubikey2
# 7. QUIT and SAVE to make GPG point it's stubs to Yubikey2
#
# Running any decrypt, auth or sign will now ask you to insert Yubikey2
# To switch to Yubikey1 at any time run this script to force GPG
# to repoint the key stubs to the inserted Yubikey
read -p "Insert the Yubikey you want to use .... " ignore
echo "Switching GPG to backup Yubikey ..."
gpg-connect-agent "scd serialno" "learn --force" /bye