There were 3 codes found in the A Dangerous Path post on the Investigation Blog .
[1] 9170910231408070803030403150917020508061
Code #1
Observations
There is a significant number of 0‘s and 1‘s in the code, looking at pairs of numbers:
91 70 91 02 31 40 80 70 80 30 30 40 31 50 91 70 20 50 80 61
The 0‘s and 1‘s are mostly found in the second digit.
Spoiler
Reversing each pair of numbers shows us all the numbers are within 26:
19 07 19 20 13 04 08 07 08 03 03 04 13 05 19 07 02 05 08 16
Substituting the numbers to their alphabet equivalent, using a = 0:
thtuneihiddenfthcfiq
Reversing each pair of numbers shows us all the numbers are within 26:
19 07 19 20 13 04 08 07 08 03 03 04 13 05 19 07 02 05 08 16
Substituting the numbers to their alphabet equivalent, using a = 0:
thtuneihiddenfthcfiq
Code #2
Observations
There is a random assortment of 37 letters and numbers, 37 is prime so transposition won’t work easily. Reencoding the code may give us more favourable lengths.
Encoding all characters to Morse code:
..- -.-- ..--- ..-. .--. -.-- .---- .-.. .--. -.-. --... -..- --.. -..- -.... -.-- .-.. -.-- .--- ..--- .--- .--. ...- .--- .--. .--. .-. -.-- --... ..--- ..-. --.- .-.. .--. .-.. --.- ...
Shows us there are 152 dits and dahs
Spoiler
152 has a factor of 8 in it. ASCII values are 8-bit. Splitting the Morse encoding into groups of 8:
..--.--..---..-..--.-.--.----.-...--.-.-.--...-..---..-..--....-.--.-..-.--.---..---.---.--....-.---.--..--..-.-.----.....---..-.--.-.-...--..-..--.-...
Substituting the dits for 0, and dahs for 1:
00110110011100100110101101111010001101010110001001110010011000010110100101101110011101110110000101110110011001010111100000111001011010100011001001101000
And finally, converting from binary to ASCII:
6rkz5brainwavex9j2h
152 has a factor of 8 in it. ASCII values are 8-bit. Splitting the Morse encoding into groups of 8:
..--.--..---..-..--.-.--.----.-...--.-.-.--...-..---..-..--....-.--.-..-.--.---..---.---.--....-.---.--..--..-.-.----.....---..-.--.-.-...--..-..--.-...
Substituting the dits for 0, and dahs for 1:
00110110011100100110101101111010001101010110001001110010011000010110100101101110011101110110000101110110011001010111100000111001011010100011001001101000
And finally, converting from binary to ASCII:
6rkz5brainwavex9j2h
Code #3
Observation
The characters in the code look like they are in Base64 encoding, but when passed through a Base64 decoder, there are a lot of non-ASCII characters.
[hint]
Having a M, N, or O is typically a clue that a decoded Base64 starts with a number.
[/hint]
Spoiler
The code ends in with the letter n, in lowercase. Reversing the code and converting lowercase to uppercase and vice-versa:
NGpibjhlcXVhbG02Zjdo
Decoding the Base64 string:
4jbn8equalm6f7h
The code ends in with the letter n, in lowercase. Reversing the code and converting lowercase to uppercase and vice-versa:
NGpibjhlcXVhbG02Zjdo
Decoding the Base64 string:
4jbn8equalm6f7h
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