Re: Poll On New Value Field Size
Posted: Tue Jan 21, 2014 11:16 pm
There is no upper bound on the size of PGP/GPG keys. Keys with many signatures can be upwards of 100KB.
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Thanks for the info ryanc.ryanc wrote:There is no upper bound on the size of PGP/GPG keys. Keys with many signatures can be upwards of 100KB.
Additional confirmation signatures are unnecessary. VM is right, we can squeeze even the largest permissible keys into .5KB, which leaves plenty of room for a link to a larger key with signatures. I'm still wary of anything >1KB as the original analysis I did assumed that we could restrict the field sizes and compositions even further. So I don't know, I keep flip flopping between 1K and 2K.khal wrote:Thanks for the info ryanc.ryanc wrote:There is no upper bound on the size of PGP/GPG keys. Keys with many signatures can be upwards of 100KB.
Based on virtual_master calcs, we can say that a standard key will fit in 2k field (1k for the key max & 1k for other data for ex), and keys with several signatures won't. Using an external file for big keys makes sense, as it can go up to 100k.
Also, people can still include their key without the signatures I guess, to fit in the small field.
OK, we are making progress. The lower bound should be 1.5k for a plain gpg key.khal wrote:Thanks for the info ryanc.ryanc wrote:There is no upper bound on the size of PGP/GPG keys. Keys with many signatures can be upwards of 100KB.
Based on virtual_master calcs, we can say that a standard key will fit in 2k field (1k for the key max & 1k for other data for ex), and keys with several signatures won't. Using an external file for big keys makes sense, as it can go up to 100k.
Also, people can still include their key without the signatures I guess, to fit in the small field.
Ugh, redid some of my image testing and "threat model" last night, definitely sticking to my 1KB maximum argument. You only need 2KB-4KB to seriously offend everyone. I will give a more formal analysis later.phelix wrote:I changed the poll so that you can recast your vote (you can do that by editing the op). As it turns
Notes: The name length is always limited to 256bytes. The poll is about the value field size in kilo bytes.
For the encryption discussion please start another topic.
OK, we are making progress. The lower bound should be 1.5k for a plain gpg key.khal wrote:Thanks for the info ryanc.ryanc wrote:There is no upper bound on the size of PGP/GPG keys. Keys with many signatures can be upwards of 100KB.
Based on virtual_master calcs, we can say that a standard key will fit in 2k field (1k for the key max & 1k for other data for ex), and keys with several signatures won't. Using an external file for big keys makes sense, as it can go up to 100k.
Also, people can still include their key without the signatures I guess, to fit in the small field.
Any strong opinions between 1.5 / 2 / 2.5 / 3 / ... kbytes? Is there an advantage to stick to whole kilobytes? Please recast your vote.
I didn't want to use my admin rights when not required :p [phelix sayz: haha :p]phelix wrote:I changed the poll so that you can recast your vote (you can do that by editing the op).
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