4 ms·

You're correct and personally I would never underestimate the NSA/FBI or any other organization. Remember Aaron Schwartz. But there is too much evidence that

by X4 14y ago

You're correct and personally I would never underestimate the NSA/FBI or any other organization. Remember Aaron Schwartz. But there is too much evidence that they might be much less professional and less equipped with such high-quality hash-databases. I don't believe that they could allocate enough professional resources (in such a "low priority" target) to actually give clearance of the case and green lights to the officers with certainty. If the porn movies are avis and 700mb, but with SD-quality, then you couldn't notice the difference. Take 20 porn files porn-a.avi (500MB original or 600MB with hidden data) There are so many rips or rips of rips that you cannot have a complete porn-database. And phew 2GB of compressed and hidden Data. Even if he didn't have used Steganography, he could easily use imageshack.us, imgur.com and other file-hosting sites, heck even upload to porn-sites to hide the data. Additionally you could get bad hashes into your database, when they upload the porn movies themself.

yk 14y ago
I am pretty sure the NSA has a high quality hash database for porn and movie files. Probably the codename is the piratebay.
jjoonathan 14y ago
How do you figure this is a low priority target? This certainly falls within their mandate and the guy might have been trying to steal legitimately sensitive information! > Take 20 porn files porn-a.avi (500MB original or 600MB with hidden data) There are so many rips or rips of rips that you cannot have a complete porn-database. And phew 2GB of compressed and hidden Data. The smallest SSD I own could handily fit that data whole and the bloom filter would fit in an arduino a thousand times over. The NSA's shiny new Utah datacenter had a $2B budget for construction alone, do you really think "rips of rips" are going to be a problem? These guys scrape web traffic by putting a T on major junctions of the internet and duplicating everything that comes down the pipes. You could set all of 4chan to making rips with permuted settings and not begin to stress infrastructure of that capacity. I don't want to be rude, but you seem to be in denial.

by X4 14y ago

yk 14y ago

I am pretty sure the NSA has a high quality hash database for porn and movie files. Probably the codename is the piratebay.

jjoonathan 14y ago

How do you figure this is a low priority target? This certainly falls within their mandate and the guy might have been trying to steal legitimately sensitive information! > Take 20 porn files porn-a.avi (500MB original or 600MB with hidden data) There are so many rips or rips of rips that you cannot have a complete porn-database. And phew 2GB of compressed and hidden Data. The smallest SSD I own could handily fit that data whole and the bloom filter would fit in an arduino a thousand times over. The NSA's shiny new Utah datacenter had a $2B budget for construction alone, do you really think "rips of rips" are going to be a problem? These guys scrape web traffic by putting a T on major junctions of the internet and duplicating everything that comes down the pipes. You could set all of 4chan to making rips with permuted settings and not begin to stress infrastructure of that capacity. I don't want to be rude, but you seem to be in denial.