On 07/04/2018 11:43 PM, Kristian Fiskerstrand wrote:
> On 07/04/2018 11:28 PM, Michał Górny wrote:
>> W dniu śro, 04.07.2018 o godzinie 23∶12 +0200, użytkownik Ulrich Mueller
>> napisał:
>>>>>>>> On Wed, 04 Jul 2018, Michał Górny wrote:
>>>>    b. Signing subkey: 1 year maximum
>>>> 5. Key expiration date renewed at least 2 weeks before the previous
>>>>    expiration date.
>>>
>>> This is crappy as a scheme, since it will make it impossible to keep
>>> the expiration date at a constant month and date.
>>>
>>
>> Nobody forces you to prolong it for exactly the same amount, exactly two
>> weeks before expiration.  The only point made here is to give services
>> time to sync rather than the common combo of renewing key once it
>> already expired.
>>
>> Especially, if you follow the recommended scheme below you can easily
>> get periodic expiration dates.
>>
> 
> As I understand ulm's concern, the issue is with the max 1 year in
> combination with this, e.g it effectively prohibits extended a subkey
> expiring 2018-12-31 to 2019-12-31 two weeks before, since that exceeds
> one year maximum
> 

fwiw, this can be mitigated by allowing e.g 1.25 years / 15 months
instead of one year.

-- 
Kristian Fiskerstrand
OpenPGP keyblock reachable at hkp://pool.sks-keyservers.net
fpr:94CB AFDD 3034 5109 5618 35AA 0B7F 8B60 E3ED FAE3

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