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by kdeldycke
1424 days ago
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> had to be printed AND available as PDF. You just reminded me of a customer I was working for as a junior ERP consultant. They required us to have the proof a document was printed by a user. I went far down the rabbit hole trying to come up with an end-to-end solution involving cryptographically signed messages sent to the printer, a physical QR code on the document to be scanned back for validation, and others convoluted half-backed contraptions. But I couldn't find an unhackable way to reconcile the state in the machine with the reality of the physical world. A senior consultant solved it in 10 minutes. Showed them. They were ecstatic and we were paid. What has he done? Just updated a "printed" column in the database to "True" when the user clicked the HTML "print" button. |
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Regardless what we think about it, the man was driving a Zonda and his garage has seen a couple of Koenigseggs, and I still build software.