Full Code: Digitally Signing a PDF | The Low-Code Café #98

The Low-Code Cafe is our weekly community webinar & work session where we share ideas, updates, and even build working applications together, from the very simple to the very complex, with the help of the Plant an App Platform. RSVP for the next edition here: https://us02web.zoom.us/webinar/register/3015952938279/WN_Y0OUx5njQFatTEMCk3B0yg Learn more about the fastest way to build powerful web apps - https://www.plantanapp.com/ Every webinar, we will be building apps together and have a great time. Besides specific topics and getting together with the community, we also have our regular segments to showcase the latest updates, tips & tricks. - Product Roadmap Updates, with Bogdan Litescu, Head of Product Development - Stories from the Trenches, with Dale Warner, Head of US Support - Hands-on Low-Code, with members of the Product Development team - Bogdan Litescu, CEO & Founder, is the one to start the show, and our regular webinar host Be sure to hit the like button and subscribe to the channel for more low-code insights and updates. We explore the role of No-Code Developers, or "Citizen Developers". See how the Plant an App platform allows these Subject Matter Experts to create functional applications to solve real-world problems. 00:00 Welcome 01:37 Product Roadmap Updates w/ Dale 01:44 ___ Beta in Progress; Release planned for next Wednesday 03:11 From the Trenches w/ Dale 03:16 ___ Hotfixes to version 1.20 05:05 ___ Using the Save To Report feature of Forms 11:58 Low-Code Campfire 12:23 Links for this episode 12:48 Low-Code Development w/ Razvan Ion 12:51 Digially Signing a PDF 15:04 ___ Motivation 15:25 ___/// Simplify the flow of signing a document 15:55 ___ Intro on digital signatures \ encryption 22:52 ___ HSM devices - Hardware Security Module 24:52 ___ Our approach ___/// Local .NET Core application ___/// Plant an App appication contains JS code that runs locally 26:00 ___ Types of communication with the HSM devices 27:12 ___/// PKCS#11 28:20 ___/// CryptoAPI 29:05 ___ Presentation and demo of local web app 30:25 ___/// .NET Core Application 33:45 ___/// Testing local app with Postman 38:15 ___ PlantAnApp application 40:10 ___/// Form Setup 48:20 Summary and Closing Notes Links mentioned in this episode: Intro on digital signatures \ encryption https://en.wikipedia.org/wiki/Symmetric-key_algorithm https://en.wikipedia.org/wiki/Public-key_cryptography https://en.wikipedia.org/wiki/Digital_signature https://en.wikipedia.org/wiki/SHA-2 Experimental JS WebUSB API for USB communication https://developer.mozilla.org/en-US/docs/Web/API/USB/getDevices PKCS#11: https://en.wikipedia.org/wiki/PKCS_11 Pkcs11Interop library to communicate with the native libraries https://pkcs11interop.net https://en.wikipedia.org/wiki/Microsoft_CryptoAPI Uses iText7 library https://itextpdf.com/ under AGPL license Code is available under : https://github.com/razvanionapp/PlantAnApp.PdfAutoSigner https://github.com/dnnsharp/PlantAnApp.PdfAutoSigner

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