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February 15, 2012 05:05 pm

Factorable Keys: Twice As Many, But Half As Bad


J. Alex Halderman and Nadia Heninger write in with an update to yesterday's story on RSA key security: "Yesterday Slashdot posted that RSA keys are 99.8% secure in the real world. We've been working on this concurrently, and as it turns out, the story is a bit more complicated. Those factorable keys are generated by your router and VPN, not bankofamerica.com. The geeky details are pretty nifty: we downloaded every SSL and SSH keys on the internet in a few days, did some math on 100 million digit numbers, and ended up with 27,000 private keys. (That's 0.4% of SSL keys in current use.) We posted a long blog post summarizing our findings over at Freedom to Tinker."

Read more of this story at Slashdot.


Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/ub8J7uGMHv0/factorable-keys-twice-as-many-but-half-as-bad

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