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This commit is contained in:
Roman Hergenreder 2018-12-05 12:58:22 +01:00
parent 433ed832e0
commit ab0b694600
27 changed files with 1128 additions and 7 deletions
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16
Day 4/decode.py
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@ -3,16 +3,24 @@
# URL: https://hackvent.hacking-lab.com/Pirates_123/
s = '::)"<.vd]!&a{":r>Qyh 7';
length = len(s)
f='HV18-';
# indizes: 4, 9, 14, 19
# xxxx-xxxx-xxxx-xxxx
# correctKey = "1xxx1xxx"
correctKey = "00000000"
for i in range(4):
pos = 4 + i*5
key = ord(s[pos]) ^ ord('-')
correctKey += "%02d%s" % (key, "00000000")
correctKey += "%02d" % key
correctKey += "00000000"
# if len(correctKey) % 4 == 0:
# correctKey += "1xxx1xxx"
# else:
# correctKey += "xx1xxx1x"
for i in range(length):
a = ord(s[i])
@ -23,9 +31,9 @@ upperBytes = ["15", "17"]
lowerBytes = ["12", "84"]
data = [correctKey[i:i+4] for i in range(0, len(correctKey), 4)]
print(correctKey)
print(data)
print(f)
print(correctKey)
print(f.encode("utf-8"))
js = ""
for i in range(len(data)):
@ -45,4 +53,4 @@ print(js)
# 000000001700008400121500000015001700008400000000
# 000000001700000000120000000015000000008400000000
#

10
Day 5/decode.py Normal file
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@ -0,0 +1,10 @@
#!/usr/bin/python
in1 = "10:a2:a3:2d:60:2e:43:0f:9d:a1:12:5b:fa:1c:36:4e:6c:e2:de:e0:57:3d:8a:69:5a:24:fc:e8:f6:f3:f5:ce"
in1_bytes = [int(x, 16) for x in in1.split(":")]
print(in1_bytes)
print(len(in1_bytes))
in2 = in1.replace(":", "")
d = int(in2, 16)
print(d)

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Teaser/_ZOoxjUSe1OVB7OPoVrsX.pdf.extracted/26D Normal file
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/Artifact <</Attached [/Bottom]/Type/Pagination/Subtype/Footer>> BDC /GS6 gs
q
-0.000005282 0.00024414 595.32 841.92 re
W* n
662.3 0 0 225.65 -29.35 1.5479 cm
/Image5 Do Q
EMC /Artifact <</Attached [/Top]/Type/Pagination/Subtype/Header>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 70.944 796.08 Tm
0 g
/GS9 gs
0 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
Q
EMC /Artifact <</Attached [/Bottom]/Type/Pagination/Subtype/Footer>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 70.944 38.4 Tm
0 g
0 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
Q
EMC /P <</MCID 0>> BDC 1 g
70.9 268.58 464.2 463.15 re
f*
0.75 w
0 G
70.9 268.58 464.2 463.15 re
S
EMC q
71.304 268.82 463.54 462.55 re
W* n
/P <</MCID 1>> BDC q
71.304 268.82 463.54 462.55 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 537.84 264.74 Tm
0 g
0 G
[( )] TJ
ET
Q
Q
EMC /P <</MCID 2>> BDC q
71.28 268.92 463.44 462.48 re
W* n
463.15 0 0 463.15 72.75 266.72 cm
/Image10 Do Q
q
71.34 268.86 463.44 462.48 re
W* n
2 w
1 j
71.75 265.72 465.15 465.15 re
S
Q
EMC /P <</MCID 3>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F2 20.04 Tf
1 0 0 1 211.49 749.02 Tm
0 g
0 G
[(HACKven)5(t )5(20)5(18)] TJ
ET
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q
0.000008871 0 595.32 841.92 re
W* n
BT
/F1 20.04 Tf
1 0 0 1 383.83 749.02 Tm
0 g
0 G
[( )] TJ
ET
Q
EMC /P <</MCID 4>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 70.944 254.66 Tm
1 g
1 G
[(.... ...)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 94.944 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 98.904 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 101.9 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 104.9 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 120.86 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 123.86 254.66 Tm
1 g
1 G
-0.036 Tc[(---)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 135.74 254.66 Tm
1 g
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[(.. )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 144.86 254.66 Tm
1 g
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ET
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q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 148.82 254.66 Tm
1 g
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ET
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q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 160.82 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
/F3 12 Tf
1 0 0 1 164.78 254.66 Tm
1 g
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ET
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q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 167.78 254.66 Tm
1 g
1 G
0.084 Tc[(--)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 175.85 254.66 Tm
1 g
1 G
[(. )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 181.85 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 193.85 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 196.85 254.66 Tm
1 g
1 G
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ET
Q
q
0.000008871 0 595.32 841.92 re
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BT
/F3 12 Tf
1 0 0 1 199.85 254.66 Tm
1 g
1 G
[(-)] TJ
ET
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q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 203.81 254.66 Tm
1 g
1 G
[(. .. )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
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BT
/F3 12 Tf
1 0 0 1 218.81 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 222.77 254.66 Tm
1 g
1 G
[(....)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 234.77 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 238.73 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 241.85 254.66 Tm
1 g
1 G
-0.036 Tc[(--)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 249.77 254.66 Tm
1 g
1 G
[(.. .)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 261.77 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 265.73 254.66 Tm
1 g
1 G
[(. ... )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 283.73 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 287.71 254.66 Tm
1 g
1 G
[(... )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 299.83 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 303.79 254.66 Tm
1 g
1 G
[(..)-9(..)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 315.91 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 319.87 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 322.87 254.66 Tm
1 g
1 G
[(..)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 328.87 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 332.83 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 335.83 254.66 Tm
1 g
1 G
[(..)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 341.83 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 345.79 254.66 Tm
1 g
1 G
[(. .)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 354.79 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 358.75 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 361.75 254.66 Tm
1 g
1 G
[(. )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 367.87 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 371.83 254.66 Tm
1 g
1 G
[(....)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 383.83 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 387.79 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 390.79 254.66 Tm
1 g
1 G
[(-)] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 394.75 254.66 Tm
1 g
1 G
[( )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 397.75 254.66 Tm
1 g
1 G
[(... )] TJ
ET
Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 409.78 254.66 Tm
1 g
1 G
[(-)] TJ
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Q
q
0.000008871 0 595.32 841.92 re
W* n
BT
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1 0 0 1 413.74 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 428.86 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 432.82 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 435.82 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
/F3 12 Tf
1 0 0 1 439.78 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 445.78 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 449.74 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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0.000008871 0 595.32 841.92 re
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 472.78 254.66 Tm
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 475.78 254.66 Tm
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 479.74 254.66 Tm
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0.000008871 0 595.32 841.92 re
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1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 498.7 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 501.7 254.66 Tm
1 g
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0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 505.66 254.66 Tm
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0.000008871 0 595.32 841.92 re
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BT
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1 0 0 1 508.78 254.66 Tm
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0.000008871 0 595.32 841.92 re
W* n
BT
/F3 12 Tf
1 0 0 1 512.74 254.66 Tm
0 g
0 G
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0.000008871 0 595.32 841.92 re
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BT
/F3 12 Tf
1 0 0 1 515.88 254.66 Tm
0 g
0 G
[( )] TJ
ET
Q
EMC /P <</MCID 5>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 70.944 227.54 Tm
0 g
0 G
[( )] TJ
ET
Q
EMC /P <</MCID 6>> BDC q
0.000008871 0 595.32 841.92 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 70.944 205.1 Tm
0 g
0 G
[( )] TJ
ET
Q
EMC /P <</MCID 7>> BDC 79.4 277.67 447 444.85 re
f*
1.5 w
79.4 277.67 447 444.85 re
S
EMC q
80.184 281.93 445.54 436.25 re
W* n
/P <</MCID 8>> BDC q
80.184 281.93 445.54 436.25 re
W* n
BT
/F1 11.04 Tf
1 0 0 1 525.84 279.77 Tm
0 g
0 G
[( )] TJ
ET
Q
Q
EMC /P <</MCID 9>> BDC q
87.36 282 431.04 436.2 re
W* n
438.4 0 0 438.4 87.35 279.77 cm
/Image15 Do Q
EMC

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22 0 26 51 27 107 25 158 28 227 30 283 31 334 29 390 32 459 33 515 34 566 35 617 21 668 17 771 18 862 19 1098 20 1121 23 1136 <</P 21 0 R/S/P/Type/StructElem/K[ 3] /Pg 3 0 R>>
<</P 25 0 R/S/Figure/Type/StructElem/K[ 7] /Pg 3 0 R>>
<</P 25 0 R/S/P/Type/StructElem/K[ 8] /Pg 3 0 R>>
<</P 21 0 R/S/Textbox/Type/StructElem/K[ 26 0 R 27 0 R] /Pg 3 0 R>>
<</P 21 0 R/S/Figure/Type/StructElem/K[ 9] /Pg 3 0 R>>
<</P 29 0 R/S/P/Type/StructElem/K[ 1] /Pg 3 0 R>>
<</P 29 0 R/S/Figure/Type/StructElem/K[ 0] /Pg 3 0 R>>
<</P 21 0 R/S/Textbox/Type/StructElem/K[ 30 0 R 31 0 R] /Pg 3 0 R>>
<</P 21 0 R/S/Figure/Type/StructElem/K[ 2] /Pg 3 0 R>>
<</P 21 0 R/S/P/Type/StructElem/K[ 4] /Pg 3 0 R>>
<</P 21 0 R/S/P/Type/StructElem/K[ 5] /Pg 3 0 R>>
<</P 21 0 R/S/P/Type/StructElem/K[ 6] /Pg 3 0 R>>
<</P 17 0 R/S/Document/Type/StructElem/K[ 22 0 R 25 0 R 28 0 R 29 0 R 32 0 R 33 0 R 34 0 R 35 0 R] >>
<</Type/StructTreeRoot/RoleMap 18 0 R/ParentTree 19 0 R/K[ 21 0 R] /ParentTreeNextKey 1>>
<</Footnote/Note/Endnote/Note/Textbox/Sect/Header/Sect/Footer/Sect/InlineShape/Sect/Annotation/Sect/Artifact/Sect/Workbook/Document/Worksheet/Part/Macrosheet/Part/Chartsheet/Part/Dialogsheet/Part/Slide/Part/Chart/Sect/Diagram/Figure>>
<</Nums[ 0 23 0 R] >>
<</Names[] >>
[ 31 0 R 30 0 R 32 0 R 22 0 R 33 0 R 34 0 R 35 0 R 26 0 R 27 0 R 28 0 R]

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Santa has caught up with the information age and does not trust
clear-text commands anymore.
He has decided that all communications
have to be encrypted to prevent an unfriendly take-over of his team.
Santa chooses a simple, secure, and toolless encryption scheme.
However, his team's memory capacity is limited and so he can only use
their names (Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donder and
Blitzen) as keys.
Where is the team headed to?
STTYN YATLOEP DNEA ONBL TGNTO MHEHH EISTIARIB FHSRA LD IIONA NL HERUV LN17-PTAA-RTON-RDOE-MCTN-AHCO
XXXXX XXXXXXX XXXX XXXX XXXXX XXXXX XXXXXXXXX XXXXX XX XXXXX XX XXXXX HV18-XXXX-XXXX-XXXX-XXXX-XXXX
DDPVCCDB
L -> H
N -> V

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#!/usr/bin/python
import subprocess
import math
import hashlib
import base64
from itertools import chain, product
from zipfile import ZipFile
# for x in ["Dasher", "Dancer", "Prancer", "Vixen", "Comet", "Cupid", "Donder", "Blitzen"]:
# subprocess.call(["unzip", "-P", x, "z.zip"])
# print(bytes(int(x) for x in "5 8 16 20 27".split(" ")).decode("cp500"))
# x = [chr(i + ord('a')) for i in range(0, 26)] + [chr(i + ord('A')) for i in range(0, 26)] + [str(i) for i in range(10)]
# print(x)
#
# try:
# for s in x:
# data = ZipFile.open("Final_easy.zip", mode='r', pwd=s)
# if data != '':
# print("found pw")
# except:
# pass
# we know that b * c = 6497 and b < c
prod = 6497
for b in range(2,math.floor(math.sqrt(prod))):
if math.floor(prod / b) == prod / b:
c = prod // b
break
# which gives us:
# b = 73
# c = 89
# print("b=%d c=%d" % (b, c))
hash = "CF945B5A36D1D3E68FFF78829CC8DBF6".lower()
hash_reversed = "H0b0"
def bruteforce(charset, minlength, maxlength):
return (''.join(candidate)
for candidate in chain.from_iterable(product(charset, repeat=i)
for i in range(1, maxlength + 1)))
# alphabet = 'abcdefghiklmnopqrstuvwxyz'
# alphabet += alphabet.upper()
# alphabet += ''.join([str(i) for i in range(10)])
#
# for i in bruteforce(alphabet, 4, 4):
# try:
# m = hashlib.md5()
# m.update(i.encode("utf-8"))
# new_hash = m.hexdigest()
# if new_hash == hash:
# hash_reversed = i
# break
# except:
# pass
if hash_reversed == None:
exit("could not find hash")
# Step 3: squareRoot
squareRoot = int(math.sqrt(8814961))
# Step 4: XOR
result = 'zvru'
part3 = ''.join([chr(ord(result[i]) ^ ord(str(squareRoot)[i])) for i in range(4)])
# print(part3)
# Step 5: Base64
b64 = base64.b64decode('RjBtMA==').decode("utf-8")
# print(b64)
flag = "HV18-%02d%02d-%s-%s-%04d-%s" % (b, c, hash_reversed, part3, squareRoot, b64)
print(flag)

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CREATE OR REPLACE FUNCTION checkHV18teaser wrapped
a000000
b2
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
8
37f 22f
9bGsDUl+WXOiRvCg6f+CmODMp3UwgwIJ+txqfC9Dgz+VaPwOTWaoKj5jW2QUCQapzabE52vy
50h+W7xBf1NE2/Fa93pBwUJtOxLvz1WIU75VaGjqH5M6oL4/aHovVUteU3Arw0eLvVRDEvbd
0mLqbyd4kEtMnI76J3vuLaHC1mkYuwEN6bdmd3GQPBtHV4fWHr5OM5B81yX+kw0560LKdDx8
mVHJvc7y7vShjsCpFgEUd6sfN3ZbOkjjbg+AJSGuIjZzvT7vkQwM5wcQL73C6+BCiaaEG2ja
r+3zqCSk6QzcKvIwuBwXf9UHGL4YS47JO3EOmIPOy8VQYfY1M9g6UeieqOftVm/Pr8smR11r
UWM8kk1WTmMvY13s1Klpr7tFnzwjmnSnTP9Exz/dV5+cU3mlgyjqkAIsWnGqDGKMfVahOHSc
Bzalmd+HDxxBF39ymrsGHfBUv0gAPtnYVCVWiG0Q9ij5DbBffRrsx4uOYuAqJ4KwT5vNpKon
MSMAM3ZsIFVQgfnY/sfkB+jfGEuldGYiui7zvIMSHVDfPEE=
/

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FUNCTION checkHV18teaser(FLAG VARCHAR2) RETURN NUMBER IS
A VARCHAR2(4);
B NUMBER(10);
C NUMBER(10);
H VARCHAR(40);
BEGIN
A := SUBSTR(FLAG,1,4);
IF NOT (A = 'HV18') THEN
RETURN 0;
END IF;
B := TO_NUMBER(SUBSTR(FLAG,6,2));
C := TO_NUMBER(SUBSTR(FLAG,8,2));
IF NOT (((B * C) = 6497) AND (B < C)) THEN
RETURN 0;
END IF;
A := SUBSTR(FLAG,11,4);
SELECT STANDARD_HASH(A, 'MD5') INTO H FROM DUAL;
IF NOT (H = 'CF945B5A36D1D3E68FFF78829CC8DBF6') THEN
RETURN 0;
END IF;
IF NOT ((UTL_RAW.CAST_TO_VARCHAR2(
UTL_RAW.BIT_XOR (
UTL_RAW.CAST_TO_RAW(SUBSTR(FLAG,16,4)),
UTL_RAW.CAST_TO_RAW(SUBSTR(FLAG,21,4)))
) = 'zvru') AND
(TO_NUMBER(SUBSTR(FLAG,21,4)) = SQRT(8814961))) THEN
RETURN 0;
END IF;
IF NOT ( UTL_RAW.CAST_TO_VARCHAR2(UTL_ENCODE.BASE64_ENCODE(UTL_RAW.CAST_TO_RAW(SUBSTR(FLAG,26,4)))) = 'RjBtMA==') THEN
RETURN 0;
END IF;
DBMS_OUTPUT.PUT_LINE(A);
RETURN 1;
END;

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@ -33,15 +33,18 @@ pix = im.load()
size = im.size
# Count Pixel types
pixels = []
pixels = {}
for x in range(size[0]):
for y in range(size[1]):
p = pix[x,y]
if p not in pixels:
pixels.append(p)
pixels[p] = 1
else:
pixels[p] += 1
print(pixels)
for p in pixels:
print(p, pixels[p])
# Filter
# for p in pixels:

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