From 638bf9d7e3875f1c7d77fc6f1c9a2e50b29b4129 Mon Sep 17 00:00:00 2001
From: Dominik Roth <dominik.roth.dev@gmail.com>
Date: Sat, 4 Jul 2020 22:45:33 +0200
Subject: [PATCH] i dont know what I changed

---
 __pycache__/xorCorrelator.cpython-38.pyc | Bin 1464 -> 1967 bytes
 xorCorrelator.py                         |  25 +++++++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/__pycache__/xorCorrelator.cpython-38.pyc b/__pycache__/xorCorrelator.cpython-38.pyc
index 20f9312e21bf9f3ce6b05cddf487960b526b3cfc..4e7332a936ef9f6f5506a2d1d14357ff72a9f737 100644
GIT binary patch
delta 694
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zc;|)emC%di2}HcnH}Dzu4HO^1OXqBY&;#?$%y(wyd}qF|eOYfEHJf$d^W^j2{tNq4
zYby>oBOr{xUwZU$Bu0Y7g&;|4rhG|PE5>HVA$Ml^iaP(98r7MxXk%nk;{vHkEzTWU
zCvOJ6OIN7PzD9Tmy=!0JHxQlTBlb~!`-4Y_wc@7QE>7eR>~i!I?-ak);k3u95@D30
zzRfs96R(bmEw(+jq{EQH90}(lg9R>dE*HRWiGvb)s&s-u5=7x~=_bM8{;PWr9+v9$
zB#cX&!jn;w_E2|ugf;`0Py?94vM)Is-!+e{lo(Z)lyE87Y?YE32PcqY3MpoAj_3Fo
zUdFj#PNtBF6)TwC&sD}u7jlceVs8`X4p&%J*Yrm2W>)5QA+rs>k-Cp?8e|TMN02+G
zPczBibr#6%PG-I?tJurTn&p8uJNjjyCv}URUNdmr5Vh*Vr5q1Zt(YiP6vm?xhkBDU
z-x^NF{#)%k!$}nFkKz*P@^YZ;9G`^|?eTq>gp>F=4+`Jya&xl90I1MoYom*<P}r!l
pI{OCd-Qt<G>DKiI*Xivdux{CAtIU6}cG^a%Y4WVL*Y-T=%6~~Ci}3&e

delta 191
zcmX}my$ZrG6b0bi{4}vPZ7dW7ohpI_-$kKRAw#Fz&8d#AeF4eh&`q30Tznee!dat(
zXSi^_<(_Nu7{-;>A@RxHuX@Xm@pQBH4GF@ISkgcPNPCJ5dB-iq<R^g_iK-Kpq4~=I
zLoXahjlie})EN67Ae5v?Z>I<#a2Ke7-8roQl(Xy!V}Iwa=4U7z6{TMI?|b@P1ntZ%
W<%G#Lb1Rv<gUlo4T~Q-albR3I*e4wT

diff --git a/xorCorrelator.py b/xorCorrelator.py
index 0270bed..b5b441f 100644
--- a/xorCorrelator.py
+++ b/xorCorrelator.py
@@ -1,4 +1,5 @@
 import secrets
+import hashlib
 
 def xor(a: bytes, b: bytes):
     if len(a)!=len(b):
@@ -21,7 +22,7 @@ def cbcXor(blocks, key: bytes, iv: bytes = None, BS=16):
         res.append(enc)
     return res
 
-def decCbcXor(blocks, key: bytes, iv: bytes = None, BS=16):
+def decCbcXor(blocks, key: bytes, iv: bytes = None, BS: int = 16):
     if len(key)!=BS:
         raise Exception("Bad key len")
     if not iv:
@@ -37,5 +38,25 @@ def decCbcXor(blocks, key: bytes, iv: bytes = None, BS=16):
         res.append(enc)
     return res
 
-def randBlocks(num: int = 64):
+def randBlocks(num: int = 64, BS: int = 16):
     return [secrets.token_bytes(16) for i in range(num)]
+
+def hashsum(blocks):
+    return hashlib.sha3_256("".join(blocks)).digest()
+
+def buildCollisionMatrix(blocks):
+    mat = []
+    for b in range(0,len(blocks)-1):
+        line = []
+        for c in range(b+1,len(blocks)):
+            block = blocks[b]
+            compr = blocks[c]
+
+            collLen = 0
+            for d in range(len(block)):
+                if block[d]!=compr[d]:
+                    break
+                collLen+=1
+            line.append(collLen)
+        mat.append(line)
+    return mat