Zig

Extract XML File from a .p7m (e.g. FATTURA ELETTRONICA, ITALY)

See more Digital Signatures Examples

_LANGUAGE_ example to extract the original file from a .p7m (Signed-Data PKCS7 Format) The .p7m contains the signed contents of the original file.

One use for this example is to extract the XML file from a Fattura Elettronica .p7m signature.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const crypt = try chilkat.Crypt2.init();
    defer crypt.deinit();

    const output_file = "testData/xml/original.xml";
    const in_file = "testData/p7m/fattura_signature.p7m";

    // Verify the signature and extract the XML file.
    crypt.verifyP7M(in_file, output_file) catch {
        std.debug.print("{s}\n", .{try crypt.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Success!\n", .{});
}