Re: Splitting a GPG private key

2015-04-08 Thread Alfredo Palhares
Hello Daniel > This is still ambiguous to me. I described two distinct cases, and i'm > not sure which one you are agreeing to. From the rest of your message, > i think you're agreeing to the first question, but not the second. The objective is to require multiple people in order to use that ke

Re: Splitting a GPG private key

2015-04-07 Thread Brian Minton
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 The Debian project solves this by having the secret key shared using (https://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing). https://ftp-master.debian.org/keys.html On Tue, Apr 7, 2015 at 1:29 PM, Bob (Robert) Cavanaugh wrote: > Alfredo, >

RE: Splitting a GPG private key

2015-04-07 Thread Bob (Robert) Cavanaugh
Alfredo, I don't have any personal experience with splitting the key. What we do at my employer is split the secret key passphrase. Yes, this is a manual process but very secure. For highly important keys we assign six trusted individuals, three have defined one half of the passphrase and three

Re: Splitting a GPG private key

2015-04-07 Thread MFPA
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Hi On Tuesday 7 April 2015 at 2:14:09 PM, in , Alfredo Palhares wrote: > I am open to any suggestions. Maybe somebody more knowledgeable than me can comment on whether "Shamir's Secret Sharing Scheme" [0] might be something relevant to mention

Re: Splitting a GPG private key

2015-04-07 Thread Daniel Kahn Gillmor
On Tue 2015-04-07 09:14:09 -0400, Alfredo Palhares wrote: > [dkg wrote:] >> Do you want to require multiple people to come together to use that >> secret key? or do you want them each to have the ability to use the key >> independently from each other? > > The objective is require multiple people

Re: Splitting a GPG private key

2015-04-07 Thread Alfredo Palhares
Hello Daniel, > Do you want to require multiple people to come together to use that > secret key? or do you want them each to have the ability to use the key > independently from each other? The objective is require multiple people to use that secret key. Yes > The answer about what to do would

Re: Splitting a GPG private key

2015-04-06 Thread Daniel Kahn Gillmor
Hi Alfredo, On Mon 2015-04-06 11:16:14 -0400, Alfredo Palhares wrote: > While looking for a way to store you passwords and share them across the > company. > > We need to control access inside subdirectories and have a master GPG key that > gets encrypted with all the other ones. > > We would lik

Splitting a GPG private key

2015-04-06 Thread Alfredo Palhares
Hello, While looking for a way to store you passwords and share them across the company. We need to control access inside subdirectories and have a master GPG key that gets encrypted with all the other ones. We would like to keep very limited access to this key, and we're thinking on literally s