From 4ff43c6f2b990b6a244d4d658934325a9ea22645 Mon Sep 17 00:00:00 2001
From: Sun Knudsen <hello@sunknudsen.com>
Date: Sat, 6 Mar 2021 14:39:16 -0500
Subject: [PATCH] Polished scripts

---
 .../qr-clone.sh                               |   2 +-
 .../qr-clone.sh.sig                           | Bin 566 -> 566 bytes
 .../qr-restore.sh                             |  14 ++++++++-----
 .../qr-restore.sh.sig                         | Bin 566 -> 566 bytes
 .../secure-erase.sh                           |  19 +++++++++---------
 .../secure-erase.sh.sig                       | Bin 566 -> 566 bytes
 6 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/how-to-create-encrypted-paper-backup/qr-clone.sh b/how-to-create-encrypted-paper-backup/qr-clone.sh
index a33bd2b..4491c28 100755
--- a/how-to-create-encrypted-paper-backup/qr-clone.sh
+++ b/how-to-create-encrypted-paper-backup/qr-clone.sh
@@ -11,7 +11,7 @@ while [[ $# -gt 0 ]]; do
     "Usage: qr-clone.sh [options]" \
     "" \
     "Options:" \
-    "  -h, --help   display help for command"
+    "  -h, --help  display help for command"
     exit 0
     ;;
     *)
diff --git a/how-to-create-encrypted-paper-backup/qr-clone.sh.sig b/how-to-create-encrypted-paper-backup/qr-clone.sh.sig
index 97e434e89ba282e20b30e4e405001923303dc41b..5fb1822a07e9135f8ed99cf48e6a0a533e4774b0 100644
GIT binary patch
delta 542
zcmV+(0^$9(1hxc_BY#8Lxc~|Y5Fe*!hAX`j1)c*B|3)9n(*MIsP`lUuV4R~xU{K<6
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z=zTh-LKn-%ZGOr!>ts1$Vs(xA9QK*sobeYU1?41>5d*$X$A97S18z)fz{0-8K#W;y
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zef!Sbs~MLJ#(EbrC0-%%dpP@EC{7)?Pq6hwUKALrm4CXe#%qg(4gNLZuBb;AFtwGS
zfJ+rsnZ0YL+BFsf09J8vUAXgnthqXl$%X>33#~z^H!(RZZ%fTWc|PJZ3mTB(^%ip;
z++i;HcM~C4+#+>X9N;g@1SRgy$->7Ict_YWKV3djVtIFBZAlR)7~b<~G%#2mHQ&|z
g<S2eM<QK;yuIFJ2-KyhYt(2N{N4^rPGFD)KlK-dzFaQ7m

delta 542
zcmV+(0^$9(1hxc_BY!@lL;wm25Fe*!hAX`j1&k&S|5FGzK27BGU9A*SUnd$yec~`%
zAtVD+^HVs|1_h+}D_3OnzqV9nmHyl_G7X+F!5}3jE+zNNNjg2(4#^^iGJxSw^CNeQ
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zgPBxX5c_z${eLWZ{;6XK(Ec7<OuX4^(D5%ZO{hwJKfa=I@DluM850jg+=%Kt)BnSs
zb5d?m<q=3)HlA%<DazoB*(JUhSG+J8h!hJ|Sd!FfmTGaTlhtlgh-lJ6ZK|XFTvl?&
zxd<sjby!xGW)jL(@1Xcj>k8_fgB-t=u{-TG#pxjIwSQxb@0<fFC?2(bYpFKV5oG))
zhhb8ISFMKV<$pgNJgZ_aJ&gCXf#3<CE|IyL(Hh?0g)>Y52uwlUl97Up+<VCjPx^@F
zJ}R8b+RDSqUS}fob6+sBYEeZ3ig8Vmv7iLHZGc}yQL65v@EU=I3`hs^Z&XD>#QSdc
gQ?h}Uj~868#>O&`h+;g^MqtmuL;i(+G#vxF`u3IqKmY&$

diff --git a/how-to-create-encrypted-paper-backup/qr-restore.sh b/how-to-create-encrypted-paper-backup/qr-restore.sh
index 5724c96..931118f 100755
--- a/how-to-create-encrypted-paper-backup/qr-restore.sh
+++ b/how-to-create-encrypted-paper-backup/qr-restore.sh
@@ -11,8 +11,8 @@ while [[ $# -gt 0 ]]; do
     "Usage: qr-restore.sh [options]" \
     "" \
     "Options:" \
-    "  --word-list    split secret into word list" \
-    "  -h, --help     display help for command"
+    "  --word-list  split secret into word list" \
+    "  -h, --help   display help for command"
     exit 0
     ;;
     --word-list)
@@ -68,9 +68,13 @@ if [ "$answer" = "y" ]; then
   if [ "$word_list" = true ]; then
     printf "%s" "Secret: "
     array=($secret)
-    for i in ${!array[@]}; do
-      position=$(($i + 1))
-      printf "%d. $bold%s$normal " "$position" "${array[$i]}"
+    last_index=$(echo "${#array[@]} - 1" | bc)
+    for index in ${!array[@]}; do
+      position=$(($index + 1))
+      printf "%d. $bold%s$normal" "$position" "${array[$index]}"
+      if [ $index -lt $last_index ]; then
+        printf " "
+      fi
     done
     printf "\n"
   else
diff --git a/how-to-create-encrypted-paper-backup/qr-restore.sh.sig b/how-to-create-encrypted-paper-backup/qr-restore.sh.sig
index 1200a8375d97d0a179ed8f79467ee3f893d452aa..c756b6aa8e18ad2ed3adb28d9c6a2b7c7a8fd8aa 100644
GIT binary patch
delta 542
zcmV+(0^$9(1hxc_BY#8J@&F165Fe*!hAX`j1zQ*o|5$}=8fhb|$AX-trl?g}<WD5<
z*2<J)<#wDMVgj)-^;*z9;iuNt65ER@;3-pFnodV7?S^f#%0b_GppoB1D;Qq#o|ix7
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gT}I4=rWYqXtU~MLkmbC@-(&`({`AvslLz?FSd@1GBme*a

delta 542
zcmV+(0^$9(1hxc_BY!@lJ^%^{5Fe*!hAX`j1uAC`{vb{;^@4OIUqxkoQ_X$jWH3Vz
z+?Y^6Od)XPBoxk&Do7M=c<qq`zlYQ`W&p}@daq~oE3XZM;E8iA$;RHo_%<|Id$*j|
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z7PQtM0>%{SO}Np9IW1%i*=^hqI?3F>?_|3%qB+uANq-PdZ*lG1BvfU!Box)2t|m@C
zwggH#640No#zO)Ond2qAI5J$p2`d(NK@GjR!qax-whZEZ^63M%{+p3#ewDVQEOzB{
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g$+jS#iWeTX*u#|~G2`-%3V#;bvTJ&_o_O(E<*5+`W&i*H

diff --git a/how-to-create-encrypted-paper-backup/secure-erase.sh b/how-to-create-encrypted-paper-backup/secure-erase.sh
index 3d9b11a..0d45fd3 100755
--- a/how-to-create-encrypted-paper-backup/secure-erase.sh
+++ b/how-to-create-encrypted-paper-backup/secure-erase.sh
@@ -1,6 +1,6 @@
 #! /bin/bash
 
-iterations=3
+rounds=3
 
 positional=()
 while [[ $# -gt 0 ]]; do
@@ -11,13 +11,13 @@ while [[ $# -gt 0 ]]; do
     "Usage: secure-erase.sh [options]" \
     "" \
     "Options:" \
-    "  --iterations   overwrite n times (defauls to 3)" \
-    "  --zero         overwrite with zeros to hide secure erase" \
-    "  -h, --help     display help for command"
+    "  --rounds <rounds>  overwrite n times (defauls to 3)" \
+    "  --zero             overwrite with zeros obfuscating secure erase" \
+    "  -h, --help         display help for command"
     exit 0
     ;;
-    --iterations)
-    iterations=$2
+    --rounds)
+    rounds=$2
     shift
     shift
     ;;
@@ -55,13 +55,12 @@ printf "$red%s$normal\n" "Secure erase USB flash drive? (y or n)? "
 
 read -r answer
 if [ "$answer" = "y" ]; then
-  array=($(seq 1 1 $iterations))
-  for iteration in ${array[@]}; do
-    printf "%s\n" "Erasing… (iteration $iteration of $iterations)"
+  for round in $(seq 1 1 $rounds); do
+    printf "%s\n" "Overwriting with random data… (round $round of $rounds)"
     sudo dd bs=1M if=/dev/urandom of=$dev
   done
   if [ "$zero" = true ]; then
-    printf "%s\n" "Writing zeros…"
+    printf "%s\n" "Overwriting with zeros…"
     sudo dd bs=1M if=/dev/zero of=$dev
   fi
 else
diff --git a/how-to-create-encrypted-paper-backup/secure-erase.sh.sig b/how-to-create-encrypted-paper-backup/secure-erase.sh.sig
index de6849c4dbfc02fe10d956e6d88ec4625e1053d5..1d21b6ec4a31cdc04c394c23aaba7910825fc936 100644
GIT binary patch
delta 542
zcmV+(0^$9(1hxc_BY#8D2LK8Q5Fe*!hAX`j1@B4_0KB}JsXMYZ*b<%IQT?pN*&rc#
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delta 542
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