Re: GnuPG - signed Telefax communication

2022-01-14 Thread Ángel
On 2022-01-14 at 22:39 +, Стефан Васильев via Gnupg-users wrote: > > What's wrong with simply using a PGP clearsign signature? > > I tried in the past to OCR scan armored GnuPG payloads, but > it introduced errors in some characters. And in case this > happens to others, how can users not

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Stuart Longland wrote: On Fri, 14 Jan 2022 20:50:57 + Стефан Васильев wrote: Would you like to explain a bit such schemes? I am aware, for example, that GnuPG on a mini offline laptop can beat *all* smartphone crypto messenger, when it comes to endpoint security, when used with a dumb

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Stuart Longland via Gnupg-users
On Fri, 14 Jan 2022 22:32:49 + Стефан Васильев wrote: > Ah ok, you referred to encoding key material. Not explicitly… as I said, you may be able to adapt that other project to store other things (e.g. the digitally signed documents discussed). > I just did a quick look and found this,

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Ángel wrote: On 2022-01-14 at 16:42 +, Стефан Васильев wrote: Hi all, If people have a modern Telefax machine, have you ever tried out to send a GnuPG signed Fax? I was thinking about the following: One prepares his message in the following way: ---begin message--- Message. --end

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Ángel
On 2022-01-14 at 16:42 +, Стефан Васильев wrote: > Hi all, > > If people have a modern Telefax machine, have you ever > tried out to send a GnuPG signed Fax? > > I was thinking about the following: > > One prepares his message in the following way: > > ---begin message--- > > Message. >

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Stuart Longland via Gnupg-users
On Fri, 14 Jan 2022 20:50:57 + Стефан Васильев wrote: > Stuart Longland wrote: > > > On Fri, 14 Jan 2022 17:54:56 + > > Стефан Васильев via Gnupg-users wrote: > > > >> > If QR is an option, why not encode the entire message in QR? > >> > >> I thought about that too, but in case

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Stuart Longland wrote: On Fri, 14 Jan 2022 17:54:56 + Стефан Васильев via Gnupg-users wrote: > If QR is an option, why not encode the entire message in QR? I thought about that too, but in case the document would be several pages long and would not fit into a QR-code. Ok, one can split

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Stuart Longland via Gnupg-users
On Fri, 14 Jan 2022 17:54:56 + Стефан Васильев via Gnupg-users wrote: > > If QR is an option, why not encode the entire message in QR? > > I thought about that too, but in case the document would be several > pages long and would not fit into a QR-code. Ok, one can split the > large

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Andrew Gallagher wrote: On 14/01/2022 18:22, Стефан Васильев wrote: Good question. My thought was that Telefax is still used, among lawyers, doctors, business folks etc., and brand-new Fax machines can be bought on Amazon etc. +1 for obsolescence! Beware of course that fax machines are VERY

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Andrew Gallagher via Gnupg-users
On 14/01/2022 18:22, Стефан Васильев wrote: >> Good question. My thought was that Telefax is still used, among > lawyers, doctors, business folks etc., and brand-new Fax machines > can be bought on Amazon etc. +1 for obsolescence! Beware of course that fax machines are VERY noisy, and analogue

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Andrew Gallagher wrote: On 14/01/2022 17:54, Стефан Васильев wrote: The idea is to use a Telefax machine for endpoint security, with an offline usage PC, which for example gpg4win is ideal for. Would it not be simpler to use a modem? Good question. My thought was that Telefax is still

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Andrew Gallagher via Gnupg-users
On 14/01/2022 17:54, Стефан Васильев wrote: > > The idea is to use a Telefax machine for endpoint security, with > an offline usage PC, which for example gpg4win is ideal for. Would it not be simpler to use a modem? > I thought about that too, but in case the document would be several > pages

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
ved...@nym.hush.com wrote: On 1/14/2022 at 11:46 AM, "Стефан Васильев via Gnupg-users" wrote: Hi all, If people have a modern Telefax machine, have you ever tried out to send a GnuPG signed Fax? = You can simply armor sign the message. Don't bother with the 'begin' and 'end' part, it

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Andrew Gallagher wrote: On Fri, 2022-01-14 at 16:42 +, Стефан Васильев via Gnupg-users wrote: The --begin etc. markers should be used to detect where the OCR scanned document begins and ends to have later a good signature. If you are relying on OCR to reconstitute a bitwise-perfect

Re: GnuPG - signed Telefax communication

2022-01-14 Thread vedaal via Gnupg-users
On 1/14/2022 at 11:46 AM, "Стефан Васильев via Gnupg-users" wrote:Hi all, If people have a modern Telefax machine, have you ever tried out to send a GnuPG signed Fax? = You can simply armor sign the message. Don't bother with the 'begin' and 'end' part, it can be added on the receiving

Re: GnuPG - signed Telefax communication

2022-01-14 Thread Andrew Gallagher via Gnupg-users
On Fri, 2022-01-14 at 16:42 +, Стефан Васильев via Gnupg-users wrote: > The --begin etc. markers should be used to detect where > the OCR scanned document begins and ends to have later > a good signature. If you are relying on OCR to reconstitute a bitwise-perfect message (because that's the

GnuPG - signed Telefax communication

2022-01-14 Thread Стефан Васильев via Gnupg-users
Hi all, If people have a modern Telefax machine, have you ever tried out to send a GnuPG signed Fax? I was thinking about the following: One prepares his message in the following way: ---begin message--- Message. --end message--- Then saves the message, detach signs it and converts the