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(.NET Core C#) ITIDA Canonicalize JSON and Compute SHA256 HashSee more Egypt ITIDA ExamplesDemonstrates creating the canonical (ITIDA) version of a JSON document, and then computes the SHA256 hash of the canonicalized JSON. For more information, see https://sdk.invoicing.eta.gov.eg/signature-creation/
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Load the JSON containing the document to be signed. // The JSON file should look like this: // NOTE: The JSON should NOT begin with "{ "documents" : [ ..." // { // "issuer":{ // "address":{ // "branchID":"0", // "country":"EG", // "regionCity":"Cairo", // "postalCode":"", // "buildingNumber":"0", // "street":"123rd Street", // "governate":"GOVERNATE" // }, // "type":"B", // "id":"209999899", // "name":"Xyz SAE" // }, // ... // ... Chilkat.StringBuilder sb = new Chilkat.StringBuilder(); bool success = sb.LoadFile("my_invoice.json","utf-8"); if (success == false) { Debug.WriteLine("Failed to load input file."); return; } // Convert the contents of sb to the ITIDA canonical form. // Always pass utf-8 for the 2nd arg. sb.Encode("itida","utf-8"); // Examine the canonicalized JSON Debug.WriteLine(sb.GetAsString()); // Compute the SHA256 hash and show the SHA256 in hex format Debug.WriteLine("SHA256 hash: " + sb.GetHash("sha256","hex","utf-8")); |
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