3 ms·
Interesting that sha256 is mentioned as approved by the government, didn't the NSA invent this encryption? Also I seem to recall another article on HN this year
by sigmaprimus 9y ago
Interesting that sha256 is mentioned as approved by the government, didn't the NSA invent this encryption? Also I seem to recall another article on HN this year about the 1st sha1 collision being found? Maybe it won't take a QC to break after all. My mistake just reread, it AES256 mentioned sorry.
- dsacco 9y agoSHA-256 (SHA-2) is incomparable to SHA-1. The (first) successful SHA-1 collision attack executed by Google et al earlier this year implies absolutely nothing about the computational hardness of SHA-2. There is no evidence whatsoever that quantum computers will break SHA-256; I'd be willing to personally stake essentially all of my assets on the bet that it won't be broken within our lifetimes. I also cannot think of a credible cryptographer off the top of my head who has voiced the opinion that quantum computers pose a threat to the SHA-2 family (or SHA-3, for that matter). At best I could see a complexity reduction, but nothing in polynomial time. Cryptographic primitives have such attacks published against them (and survive them) all the time.
- sigmaprimus 9y agoOk, first off I didn't say it would be broken by a QC but that is besides the point. As a person who has been around long enough to remember when people stated our computers would never need more that 640K, I would never stake all my assets on what will come in the future, but maybe your not long for this world..happy new year.