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Entropy check before password generation

Bob Mottram hace 9 años
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commit
49593d8436
Se han modificado 1 ficheros con 5 adiciones y 0 borrados
  1. 5
    0
      src/freedombone-image-customise

+ 5
- 0
src/freedombone-image-customise Ver fichero

@@ -237,6 +237,11 @@ EOF
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     echo '    if [ -f ~/login.txt ]; then' >> $rootdir/root/.bashrc
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     echo '        NEW_USER_PASSWORD=$(cat ~/login.txt)' >> $rootdir/root/.bashrc
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     echo '    else' >> $rootdir/root/.bashrc
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+    echo '        ENTROPY=$(cat /proc/sys/kernel/random/entropy_avail)' >> $rootdir/root/.bashrc
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+    echo '        if [ $ENTROPY -lt 500]; then' >> $rootdir/root/.bashrc
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+    echo '            echo "WARNING: The entropy available on this system is too low to generate a password"' >> $rootdir/root/.bashrc
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+    echo '            exit 5763' >> $rootdir/root/.bashrc
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+    echo '        fi' >> $rootdir/root/.bashrc
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     echo '        NEW_USER_PASSWORD="$(openssl rand -base64 12 | cut -c1-10)"' >> $rootdir/root/.bashrc
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     echo '    fi' >> $rootdir/root/.bashrc
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     echo '    echo -n "${NEW_USER_PASSWORD}" > ~/login.txt' >> $rootdir/root/.bashrc