[dns-operations] Surprisingly large cluster of domains sharing the same pair of 512-bit ZSKs and some more RSA key oddities

Jeremy L. Gaddis lists-dns-operations at gadd.is
Tue Oct 31 23:52:53 UTC 2017

On Mon, Oct 30, 2017 at 02:15:48PM EDT, Viktor Dukhovni wrote:
> I think that key generation utilities should, in the absence of some sort
> of "force" option, refuse to unusual keys.  At present that means:
>     * exponent is unconditionally 65535 (F_4)

Note that F_4 is actually 65537.

Jeremy L. Gaddis

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