OpenPGP on paper (was: Where can I find some papers to read on mail (and envelope) security?)

[Dirk-Willem van Gulik]

> On 1 Feb 2019, at 17:37, Stefan Claas <sac at 300baud.de> wrote:
> 
> On Wed, 30 Jan 2019 21:50:06 +0100, Stefan Claas wrote:
>> On Wed, 30 Jan 2019 21:23:56 +0100, Peter Lebbing wrote:
>> 
>>> On 30/01/2019 20:44, Stefan Claas wrote:  
>>>> But which one ... ;-) I may check this again with a friend.    
>>> 
>>> Well there are the classical options:
>>> <https://en.wikipedia.org/wiki/OCR-A>
>>> <https://en.wikipedia.org/wiki/OCR-B>
>>> 
>>> Debian provides free fonts like that as packages fonts-ocr-a and
>>> fonts-ocr-b, which come from:
>>> <http://sourceforge.net/projects/ocr-a-font>
>>> and
>>> <http://ansuz.sooke.bc.ca/fonts.php>  
>> 
>> Thanks, i will take a look!
> 
> O.k. just did some tests again with old .pdf's containing images
> of scanned text and then also used a jpeg image (small resolution)
> with the free tesseract.
> 
> Tesseract did not do a good job, to many errors.
> 
> Then i googled a bit and ... Google can do it.
> 
> According to a youtube video you need a gmail account, upload to
> Google Drive and then from there open the image or pdf with
> Google Docs, which does imho the best job i have seen do far.
> 
> I will do more tests, once time permits.

It is a bit of a hack - and quite setting specific for us - but we’ve been using

	https://github.com/dirkx/gpg-offline-batch-key- <https://github.com/dirkx/gpg-offline-batch-key->

and had to occasionally recover keys (every few years or so).

Typical output below.

Dw.

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