You can unscramble the hashes of humanity's 5 billion email addresses in ten milliseconds for $0.0069

JonS · April 9, 2018, 10:00pm

If there’s no cross-company matching then I get it; salt=teh_good.

But what if Company A wants to match their data with the data held by Company B, in order to create a richer data set about all users?

Topic		Replies	Views
Password hashing demystified boing	14	1542	June 13, 2016
Feds tell major internet service providers to decrypt and hand over users' account passwords boing	28	4307	July 30, 2013
Explainer video shows how secure 256 bit security is boing	12	1714	December 13, 2017
Eight-volume hardcover set collects 4.7 million Linkedin passwords in alphabetical order boing	8	2929	December 28, 2013
Now we know the NSA blew the black budget breaking crypto, how can you defend yourself? boing	21	2958	October 21, 2015