Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Stewart C. Russell via talk
On 12/04/2023 15.54, Alex Kink via talk wrote: By "digital signatures" you still mean cryptographic digital signatures, right, not scribbles on a PDF? Both. Those squiggles you left on someone's Square app? Valid signature. Who and in what context would accept them? I haven't tried, but I

Re: [GTALUG] UNIX of ESP32 [was Re: Canadian hosting?]

2023-04-12 Thread Stewart Russell via talk
On Wed, Apr 12, 2023 at 3:45 PM D. Hugh Redelmeier via talk wrote: > I window shop for these on AliExpress. Most ads are unclear about > just what modules they use. > This is why using established designers and resellers is a good idea. Even on AliExpress, there are vendors who develop their

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Ansar Mohammed via talk
I think you are conflating physically signing a doc, with digital signature. When you use a digital pen to sign a doc, your signature does not matter, it's completely cosmetic. The doc is signed under the hood electronically using PKI with a trusted chain based on how you authenticated to the

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread D. Hugh Redelmeier via talk
| From: James Knott via talk | The proper way to do digital signatures is with X.509 certificates. When I was | at IBM, in the late 90s, we used them in Lotus notes. There are some public | key sources available, but it's not very common outside of large | organizations. Maybe. The troubles

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Alex Kink via talk
I don't recall it ever being hacked but it did suffer from the ROCA vulnerability few years ago. https://en.wikipedia.org/wiki/ROCA_vulnerability > On Apr 12, 2023, at 15:59, D. Hugh Redelmeier via talk > wrote: > > I seem to remember that Estonia's system was > hacked. Of course the current

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread James Knott via talk
On 2023-04-12 15:54, Alex Kink via talk wrote: By "digital signatures" you still mean cryptographic digital signatures, right, not scribbles on a PDF? The proper way to do digital signatures is with X.509 certificates. When I was at IBM, in the late 90s, we used them in Lotus notes. There

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread D. Hugh Redelmeier via talk
| From: Alex Kink via talk | For my Estonian dealings, I've been signing documents (any file for that | matter) electronically since 2003. | https://en.wikipedia.org/wiki/Estonian_identity_card Certainly Estonia has been the leader. | I saw some nut job at an intersection in Mississauga the

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Alex Kink via talk
> On Apr 12, 2023, at 15:46, Stewart Russell via talk wrote: > > Digital signatures - even self-signed signatures created in Adobe tools and > some others - are as valid in Ontario as wet signatures. By "digital signatures" you still mean cryptographic digital signatures, right, not scribbles

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Stewart Russell via talk
On Wed, Apr 12, 2023 at 2:54 PM D. Hugh Redelmeier via talk wrote: > We don't seem to have a Public Key Infrastructure that makes digital > (cryptographic) signatures useful for non-computer work. > We do, but it might not be a "we" that intersects with our "we". The building industry in

Re: [GTALUG] UNIX of ESP32 [was Re: Canadian hosting?]

2023-04-12 Thread D. Hugh Redelmeier via talk
| From: Stewart C. Russell via talk | It's a little hard to find the exact EP32 module used for that simulation. | That's part of the problem: there are many different chips called ESP32 | /something/, but many of them are incompatible. Some have one core, most have | two. Some have the ability

Re: [GTALUG] Canadian hosting?

2023-04-12 Thread BCLUG via talk
Znoteer via talk wrote on 2023-04-11 16:58: baremetal.ca They're in BC. Cool - I hadn't heard of them. Oh, looks like they do "web hosting" but I don't see VPSs listed. Also, I just cannot do business with companies that think including emoji / smiley faces in official company documents

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Alvin Starr via talk
On 2023-04-12 14:54, D. Hugh Redelmeier via talk wrote: We don't seem to have a Public Key Infrastructure that makes digital (cryptographic) signatures useful for non-computer work. I think signing a document is a solemn act. So I don't want to just paste a .PNG of my signature, I want to

Re: [GTALUG] how I sign PDFs

2023-04-12 Thread Alex Kink via talk
I miss this sorely in Canada. For my Estonian dealings, I've been signing documents (any file for that matter) electronically since 2003. https://en.wikipedia.org/wiki/Estonian_identity_card Ontario was to introduce a digital identity system by 2021 but we are still waiting. I haven't looked

[GTALUG] how I sign PDFs

2023-04-12 Thread D. Hugh Redelmeier via talk
We don't seem to have a Public Key Infrastructure that makes digital (cryptographic) signatures useful for non-computer work. I think signing a document is a solemn act. So I don't want to just paste a .PNG of my signature, I want to actually sign it. I don't have a modern Linux device with a