[cryptography] RSA Moduli (NetLock Minositett Kozjegyzoi Certificate)

Jon Callas jon at callas.org
Fri Mar 23 09:51:51 EDT 2012

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On Mar 23, 2012, at 6:39 AM, Peter Gutmann wrote:

> Jon Callas <jon at callas.org> writes:
>> On Mar 23, 2012, at 6:03 AM, Peter Gutmann wrote:
>>> Jeffrey Walton <noloader at gmail.com> writes:
>>>> Is there any benefit to using an exponent that factors? I always thought low
>>>> hamming weights and primality were the desired attributes for public
>>>> exponents. And I'm not sure about primality.
>>> Seeing a CA put a key like this in a cert is a bit like walking down the
>>> street and noticing someone coming towards you wearing their underpants on
>>> their head, there's nothing inherently bad about this but you do tend to want
>>> to cross the street to make sure that you avoid them.
>> But Peter, CAs don't *precisely* put keys into certs. CAs certify a key that
>> the key creator wants to have in their cert.
> This is a self-signed cert from the CA, so the key creator was the CA.

So it's like issuing yourself an Artistic License card with a color printer and laminator. :-) Good for lots of laughs.


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