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disruptiveink06/15/20253 repliesview on HN

Wait, but didn't TLS 1.0 have significant improvements over SSL 3.0? The article makes it seems that just a couple of things were tweaked just to make it different for the sake of being different.


Replies

mcpherrinm06/16/2025

The main difference is in the padding. When the POODLE attack was pre-announced as only affecting SSL3 and not TLS1.0, that was enough to predict it was going to be a padding oracle.

I think it’s fair to say they’re very similar, with a few “bug fixes”. It’s been a while since I’ve thought about either though, and might be forgetting a few things. I’ve only ever implemented SSL3 and TLS1.0 together, so there may be some details I’m forgetting.

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timdierks06/16/2025

The tweaks were minor (smaller than for any other version revision), and mostly just the IETF marking its territory and doing something other than blessing the SSL 3.0 protocol as-is.

layer806/15/2025

Indeed there are significant changes and improvements, though it’s not a complete redesign like SSL 3.0 was.