Re: F41 Change Proposal: Make OpenSSL distrust SHA-1 signatures by default (system-wide)

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Hi Peter,

> On 11. Jun 2024, at 07:01, Peter Boy <pboy@xxxxxxxxxxxxx> wrote:
> 
>> Am 10.06.2024 um 20:16 schrieb Richard W.M. Jones <rjones@xxxxxxxxxx>:
>> 
>> On Mon, Jun 10, 2024 at 01:43:57PM +0200, Vít Ondruch wrote:
>>> I wish this proposal included some examples of what might get broken
>>> and what will keep working. I guess I am not the only one who have
>>> very vague understanding what is difference between "signatures" and
>>> "hashing" or other purposes SHA1 can be used for.
>> 
>> SSH and HTTPS to old machines (even old versions of Fedora & RHEL) and
>> to old network equipment and the like will not be possible.
>> 
>> I'm annoyed that this is not just put behind the LEGACY policy, since
>> if that's not what "legacy" is for, what _is_ it for?
>> 
>> As an aside, it'd be very nice if policies could be set per-process.
>> That would greatly enhance security by allowing specific programs to
>> connect to the legacy machines, while maintaining general system
>> security.
>> 
>> Anyway, -1 from me.
>> 
>> Rich.
> 
> Anyway, -1 from me, too
> 
> For exactly that reason.

Can you elaborate what you would need, in addition to the LEGACY policy (which still allows these connections) and the runcp utility?


-- 
Clemens Lang
RHEL Crypto Team
Red Hat


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