From 2db90bfe4b174570424c408f04000902411d8755 Mon Sep 17 00:00:00 2001
From: Joshua Baer <the.baer.joshua@gmail.ch>
Date: Mon, 12 Apr 2021 21:51:55 +0200
Subject: update to current state of book

---
 buch/chapters/90-crypto/images/sbox.m | 104 +++++++++++++++++-----------------
 1 file changed, 52 insertions(+), 52 deletions(-)

(limited to 'buch/chapters/90-crypto/images/sbox.m')

diff --git a/buch/chapters/90-crypto/images/sbox.m b/buch/chapters/90-crypto/images/sbox.m
index 973ffc9..1f0c2ce 100644
--- a/buch/chapters/90-crypto/images/sbox.m
+++ b/buch/chapters/90-crypto/images/sbox.m
@@ -1,52 +1,52 @@
-#
-# sbox.m
-#
-# (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
-#
-A=[
-1,0,0,0,1,1,1,1;
-1,1,0,0,0,1,1,1;
-1,1,1,0,0,0,1,1;
-1,1,1,1,0,0,0,1;
-1,1,1,1,1,0,0,0;
-0,1,1,1,1,1,0,0;
-0,0,1,1,1,1,1,0;
-0,0,0,1,1,1,1,1;
-]
-
-R = zeros(8,16);
-R(:,1:8) = A;
-R(:,9:16) = eye(8);
-
-for k = (1:5)
-	for i=(k+1:8)
-		pivot = R(i,k);
-		R(i,:) = R(i,:) + pivot * R(k,:);
-	end
-	R = mod(R, 2)
-end
-
-P = [
-1,0,0,0,0,0,0,0;
-0,1,0,0,0,0,0,0;
-0,0,1,0,0,0,0,0;
-0,0,0,1,0,0,0,0;
-0,0,0,0,1,0,0,0;
-0,0,0,0,0,0,0,1;
-0,0,0,0,0,1,0,0;
-0,0,0,0,0,0,1,0;
-]
-
-R = P * R
-
-for k = (8:-1:2)
-	for i = (1:k-1)
-		pivot = R(i,k);
-		R(i,:) = R(i,:) + pivot * R(k,:);
-	end
-	R = mod(R, 2)
-end
-
-B = R(:,9:16)
-
-A * B
+#
+# sbox.m
+#
+# (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
+#
+A=[
+1,0,0,0,1,1,1,1;
+1,1,0,0,0,1,1,1;
+1,1,1,0,0,0,1,1;
+1,1,1,1,0,0,0,1;
+1,1,1,1,1,0,0,0;
+0,1,1,1,1,1,0,0;
+0,0,1,1,1,1,1,0;
+0,0,0,1,1,1,1,1;
+]
+
+R = zeros(8,16);
+R(:,1:8) = A;
+R(:,9:16) = eye(8);
+
+for k = (1:5)
+	for i=(k+1:8)
+		pivot = R(i,k);
+		R(i,:) = R(i,:) + pivot * R(k,:);
+	end
+	R = mod(R, 2)
+end
+
+P = [
+1,0,0,0,0,0,0,0;
+0,1,0,0,0,0,0,0;
+0,0,1,0,0,0,0,0;
+0,0,0,1,0,0,0,0;
+0,0,0,0,1,0,0,0;
+0,0,0,0,0,0,0,1;
+0,0,0,0,0,1,0,0;
+0,0,0,0,0,0,1,0;
+]
+
+R = P * R
+
+for k = (8:-1:2)
+	for i = (1:k-1)
+		pivot = R(i,k);
+		R(i,:) = R(i,:) + pivot * R(k,:);
+	end
+	R = mod(R, 2)
+end
+
+B = R(:,9:16)
+
+A * B
-- 
cgit v1.2.1