Zig

Provide a Certificate Vault to an Email

Demonstrates the Chilkat Email.UseCertVault method, which adds an XML certificate vault to the email's internal certificate and private-key lookup sources for encryption, decryption, signing, and verification. This example builds a vault from a PFX and attaches it to the email.

Background: A certificate vault is a portable, in-memory store of certificates and private keys. Instead of wiring up each certificate individually for every operation, you load your credentials into one XmlCertVault and hand it to the email; Chilkat then draws on it automatically whenever it needs a key — to decrypt an incoming message, sign an outgoing one, or verify a signature. This is especially convenient on platforms without an OS certificate store.

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

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

    // Demonstrates the UseCertVault method, which adds an XML certificate vault to the email's
    // internal certificate and private-key lookup sources for encryption, decryption, signing,
    // and verification.

    const email = try chilkat.Email.init();
    defer email.deinit();

    // Build a certificate vault from a PFX (certificate + private key).
    const vault = try chilkat.XmlCertVault.init();
    defer vault.deinit();
    vault.addPfxFile("qa_data/certs/certs.pfx", "pfx_password") catch {
        std.debug.print("{s}\n", .{try vault.getLastErrorText(alloc)});
        return;
    };

    // Make the vault available to the email object for crypto operations.
    email.useCertVault(vault) catch {
        std.debug.print("{s}\n", .{try email.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Certificate vault attached to the email.\n", .{});

    // Note: The path "qa_data/certs/certs.pfx" is a relative local filesystem path,
    // relative to the current working directory of the running application.
}