Re: [OSM-talk] SHA-1 collision announced by Google

The only one that wouldn't have collisions would be to hash every single bit to produce a 1:1 copy of the file(pretty useless) or bigger. So yes all hashes can create collisions, its more on the probability that it happens to be as low as possible On Feb 25, 2017 8:36 AM, "Nicolás Alvarez"

Re: [OSM-talk] SHA-1 collision announced by Google

All hashes by their nature can have collisions. The news is there is a practical way to intentionally generate them. It's the first time this is done for SHA-1, at least publicly announced (it wouldn't surprise me if the NSA had secret techniques and computing power to do it already). > On Feb

Re: [OSM-talk] SHA-1 collision announced by Google

It's been known for a while that sha1 can generate duplicates. What next the announcement that MD5s have collisions too? On Feb 24, 2017 3:39 PM, "Pine W" wrote: If you develop or run software that uses SHA-1, here's another reason to upgrade to a more secure algorithm:

[OSM-talk] SHA-1 collision announced by Google

If you develop or run software that uses SHA-1, here's another reason to upgrade to a more secure algorithm: https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html Pine ___ talk mailing list talk@openstreetmap.org