securinets-ctf-2015-crypto/matrix-everywhere

Matrix everywhere (Des matrices partout)
Category: Crypto
Points: 100
Description: Hint : Compatible Operation (Opération compatible)
url : http://41.231.22.133:8020/2/matrices.docx

 

1	0	0	0	0	0	0	0	1	0
2	0	0	0	0	0	0	0	0	1
3	0	1	0	0	0	0	0	0	0
4	0	0	0	1	0	0	0	0	0
5	0	0	0	0	0	0	1	0	0
6	0	0	0	0	1	0	0	0	0
7	1	0	0	0	0	0	0	0	0
8	0	0	1	0	0	0	0	0	0
9	0	0	0	0	0	0	0	0	0
10	0	0	0	0	0	1	0	0	0

DECIMAL = 64 84 76 71 48 61 70 65 82 82
ASCII         = @ T    L  G  0   =   F    A   R   R
index           = 1  2    3    4  5   6   7     8   9   10

The digit number 1 in colon index 64 is in position 7 , the index 7 in ASCII row is : F
The digit number 1 in colon index 84 is in position 3 , the index 3 in ASCII row is : L
The digit number 1 in colon index 76 is in position 8 , the index 8 in ASCII row is : A
The digit number 1 in colon index 71 is in position 4 , the index 4 in ASCII row is : G
The digit number 1 in colon index 48 is in position 6 , the index 6 in ASCII row is : =
The digit number 1 in colon index 61 is in position 10 , the index 10 in ASCII row is : R
The digit number 1 in colon index 70 is in position 5 , the index 5 in ASCII row is : 0
The digit number 1 in colon index 65 is in position 1 , the index 1 in ASCII row is : @
The digit number 1 in colon index 82 is in position 2 , the index 2 in ASCII row is : T

we get FLAG=R0@T