mirror of
https://github.com/Bandie/grub2-signing-extension.git
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52 lines
1008 B
Bash
52 lines
1008 B
Bash
#!/bin/bash
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# grub2-sign
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# Signs everything important in /boot. Depends on grub2-verify.
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# Author: Bandie Kojote
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# Licence: GNU-GPLv3
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# Running grub2-verify first to prevent double signing
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echo "Running grub2-verify to check if everything is unsigned..."
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grub2-verify
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if [ $? -lt 2 ]
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then
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echo "Run grub2-unsign first."
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exit 1
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fi
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# Ask for passphrase
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echo -n "Passphrase: "
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stty -echo
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read pp
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stty echo
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echo -e "\n"
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# Find GRUB2 datas
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for i in `find /boot -name "*.cfg" -or -name "*.lst" -or \
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-name "*.mod" -or -name "vmlinuz*" -or -name "initrd*" -or \
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-name "grubenv" -or -name "*.asc" -or -name "*.pf2"`;
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do
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# Signing
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echo $pp | gpg --batch --detach-sign --passphrase-fd 0 $i
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if [ $? -eq 0 ]
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then
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echo "$i signed."
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else
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echo "ERROR!"
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break
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fi
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done
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# Shredding passphrase
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echo "Shredding passphrase..."
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for ( i=0; $i<10; i++ )
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do
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pp=`cat /dev/urandom | tr -dc 'a-zA-Z0-9-!@#$%^&*()_+~' | fold -w ${#pp} | head -n 1`
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done
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echo "Done!"
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exit 0
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