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Re: OT - can anyone help me 'decode' this?




On 4/18/2018 8:17 AM, Rav wrote:
On 4/18/2018 5:47 AM, Ray_Net wrote:
Rav wrote on 17-04-18 23:58:
On 4/17/2018 3:44 PM, David B. wrote:
67654A30676F76336A654A31666E2B3066374A32676F463365374A6B676F775067654A31 676542336665543267656E6967596E31676F466B65374A6B6765475366375432666E2F50 6859546D67656E6966596E31676F586D67374A31676F423065374A6B6770466A66375431
< rest snipped>

It COULD be base 64, but it could be other things too.  For example, each two digits could represent the hex representation of an ASCII digit, which would give:

fdI/fnu2idI0em*/e6I1fnE2d6IjfnvOfdI0fdA2edS1fdmhfXm0fnEjd6IjfdFRe6S1em.OgXSlfdmheXm0fnWlf6I0fnA/d6IjfoEie6S0fdShfXI0foIkenI1fnEle6S0fdWhjnI0fnFPd6mjfdOkfXI1fdS3enI1foW/d6IjfoEie6S0fnShgXm0fnAjd6mjfnu0e6I0foI/edS1em.QjXIlem.RfdI0foJRe6S0em.Oenm0fdA/d6Ajem*3f6I0fnAid6IjfoI2d6I1fdW/d6IjfoI0enS1fdWhjnI0fnFPe6I1fnu2jXI0em*1gXI0fdBQfXm0fnEjedm1fnuljXI0em*1e6I1em.Rf6I0fc*id6I1foE/jW*jd7PPi5*he6vMd6IjfoIld6IjfnO2fnI1em*/edI1foBRfXS0fnmhjnI0fnBRd6mjfnOhenm1fdWld6IjfnJRd6IjfoEijnm0fnqlfXm0em*jfnI1fnA3fXI0
etc. etc.

which is gibberish.  Decoding properly depends on how it was encoded. Do you know how it was encoded?

Perhaps, it's a picture ....

Not likely, given how few unique combinations there are.  It would be an extremely low resolution picture.  *IF* my math is correct, out of the 10168 characters that David provided, there are 16 unique bytes (0-10 and A-F, i.e. hex), 43 unique 2-byte combinations (out of a possible 256), 143 unique 4-byte combinations (out of a possible 65,536), and 254 unique 8-byte combinations (out of a possible 4,294,967,296).  Not enough unique combinations to represent enough different pixels.



Sorry, I should add that there are actually only 5084 2-byte combinations, 2542 4-byte, and 1271 8-byte, so those are the maximum number of possible combinations given the short length of David's data (it would be a tiny picture). The larger numbers above are the maximum number of POSSIBLE combinations, given a large enough data set. Still, the number of actual combinations relative to 5084/2542/1271 is pretty small.
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