diff --git a/README.md b/README.md
index d909543..4035d9f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,13 @@
 Mifare Classic Plus - Hardnested Attack Implementation for LibNFC USB readers (SCL3711, ASK LoGO, etc)
 
 Installation:
+
+Installation used to be very easy but the original CraptEV1 / Crapto1 source packages are not made available anymore by their author, therefore you've to find a copy of these two packages by yourself
+because redistribution of CraptEV1 is not allowed by its license.
+
 ```bash
+# wget http://crapto1.netgarage.org/craptev1-v1.1.tar.xz
+# wget http://crapto1.netgarage.org/crapto1-v3.3.tar.xz
 ./miLazyCrackerFreshInstall.sh
 ```
 
diff --git a/crypto1_bs.diff b/crypto1_bs.diff
index f385858..bd6b949 100644
--- a/crypto1_bs.diff
+++ b/crypto1_bs.diff
@@ -1,8 +1,8 @@
 diff --git a/libnfc_crypto1_crack.c b/libnfc_crypto1_crack.c
-index 8a53f64..21feed2 100644
+index 2015dcb..0fa7436 100755
 --- a/libnfc_crypto1_crack.c
 +++ b/libnfc_crypto1_crack.c
-@@ -713,6 +713,17 @@ int main (int argc, const char * argv[]) {
+@@ -730,6 +730,17 @@ int main (int argc, const char * argv[]) {
          return 1;
      } else {
          printf("Found key: %012"PRIx64"\n", found_key);
@@ -18,5 +18,5 @@ index 8a53f64..21feed2 100644
 +            }
 +        }
      }
-     printf("Tested %zu states\n", total_states_tested);
+     printf("Tested %"llu" states\n", total_states_tested);
  
diff --git a/miLazyCrackerFreshInstall.sh b/miLazyCrackerFreshInstall.sh
index 54cc1f3..41f19b0 100755
--- a/miLazyCrackerFreshInstall.sh
+++ b/miLazyCrackerFreshInstall.sh
@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [ ! -f craptev1-v1.1.tar.xz ] || [ ! -f crapto1-v3.3.tar.xz ]; then
+    echo "I need craptev1-v1.1.tar.xz and crapto1-v3.3.tar.xz. Aborting."
+    exit 1
+fi
+
 set -x
 
 # run this from inside miLazyCracker git repo
@@ -25,10 +30,11 @@ sudo apt-get install git libnfc-bin autoconf libnfc-dev
     cd crypto1_bs || exit 1
     git reset --hard
     git clean -dfx
-    # patch initially done against commit 957702be:
+    # patch initially done against commit 89de1ba5:
     patch -p1 < ../crypto1_bs.diff
-    make get_craptev1
-    make get_crapto1
+    tar Jxvf ../craptev1-v1.1.tar.xz
+    mkdir crapto1-v3.3
+    tar Jxvf ../crapto1-v3.3.tar.xz -C crapto1-v3.3
     make
     sudo cp -a libnfc_crypto1_crack /usr/local/bin
 )