Re: Problems using 10kbit keys in GnuPG instead of 4kbit keys

2013-09-10 Thread Ole Tange
On Tue, Sep 10, 2013 at 11:07 AM, Werner Koch wrote: > > There are several problems with overlong encryption keys, to name just > two: > > - If you use an 8k encryption key you should also use an 8k primary >certification key because that is the key which is used to keep the >parts of an

Problems using 10kbit keys in GnuPG instead of 4kbit keys

2013-09-09 Thread Ole Tange
I am really happy that no one so far shown any problems in the part on using 10kbit keys today (only the justification for using 10kbit keys seems to be controversial). I have therefore extracted the non-controversial part as a separate document: http://oletange.blogspot.dk/2013/09/problems-using-

Re: Recommended key size for life long key

2013-09-08 Thread Ole Tange
On Sun, Sep 8, 2013 at 1:53 AM, Robert J. Hansen wrote: > On 9/7/2013 5:35 PM, Ole Tange wrote: >> Feel free to let me know if you feel I have left out important concerns. : > You're projecting 87 years into the future. Why should we have any > confidence in your analysis? T

Re: Recommended key size for life long key

2013-09-08 Thread Ole Tange
On Sun, Sep 8, 2013 at 12:06 AM, Ingo Klöcker wrote: > On Saturday 07 September 2013 23:35:08 Ole Tange wrote: >> On Sat, Aug 31, 2013 at 11:46 AM, Ole Tange wrote: : >> http://oletange.blogspot.dk/2013/09/life-long-key-size.html : > but I'm pretty sure it's releva

Re: Recommended key size for life long key

2013-09-07 Thread Ole Tange
On Sat, Aug 31, 2013 at 11:46 AM, Ole Tange wrote: : > Why not recommend a key size that will not be broken for the rest of > your natural life? Thanks for all your feed back on the list. I have now summed up the concerns raised on the list on http://oletange.blogspot.dk/2013/09/life-lo

Recommended key size for life long key

2013-08-31 Thread Ole Tange
The FAQ http://www.gnupg.org/faq/GnuPG-FAQ.html#what-is-the-recommended-key-size recommends a key size of 1024 bits. Reading http://www.keylength.com/en/4/ I am puzzled why GnuPG recommends that. Why not recommend a key size that will not be broken for the rest of your natural life? (Assuming the