Zig Requires Chilkat v11.0.0+

IKOF Generation Code for Montenegro Fiscalization Service

See more _Miscellaneous_ Examples

Demonstrates computing the IKOF MD5 summary value as described in section 4.3 of this document: https://poreskauprava.gov.me/ResourceManager/FileDownload.aspx?rId=416042&rType=2 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 concatenated_params = "12345678|2019-06-12T17:05:43+02:00|9952|bb123bb1231|cc123cc1231|ss123ss123|199.01";

    // Get the private key from a pfx file.
    const pfx = try chilkat.Pfx.init();
    defer pfx.deinit();
    pfx.loadPfxFile("qa_data/pfx/cert_test123.pfx", "test123") catch {
        std.debug.print("{s}\n", .{try pfx.getLastErrorText(alloc)});
        return;
    };

    const priv_key = try chilkat.PrivateKey.init();
    defer priv_key.deinit();
    pfx.privateKeyAt(0, priv_key) catch {
        std.debug.print("{s}\n", .{try pfx.getLastErrorText(alloc)});
        return;
    };

    // Create IIC signature according to RSASSA-PKCS-v1_5 using SHA256
    const rsa = try chilkat.Rsa.init();
    defer rsa.deinit();
    rsa.usePrivateKey(priv_key) catch {
        std.debug.print("{s}\n", .{try rsa.getLastErrorText(alloc)});
        return;
    };

    // PKCS-v1_5 is used by default.
    rsa.setEncodingMode("hex");
    rsa.setCharset("utf-8");
    const hex_sig = try rsa.signStringENC(alloc, concatenated_params, "sha256");

    std.debug.print("Signature value result is: {s}\n", .{hex_sig});

    // Compute the MD5 hash of the bytes.
    const crypt = try chilkat.Crypt2.init();
    defer crypt.deinit();
    crypt.setEncodingMode("hex");
    crypt.setHashAlgorithm("md5");
    const bd = try chilkat.BinData.init();
    defer bd.deinit();
    bd.appendEncoded(hex_sig, "hex") catch {};
    const md5_summary = try crypt.hashBdENC(alloc, bd);

    std.debug.print("MD5 summary value is: {s}\n", .{md5_summary});
}