Zig Requires Chilkat v11.0.0+

RSA Encrypt and OpenSSL Decrypt

See more OpenSSL Examples

Demonstrates how to use Chilkat to RSA encrypt, and then use OpenSSL to decrypt. Zig

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

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

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

    const rsa = try chilkat.Rsa.init();
    defer rsa.deinit();

    const priv_key = try chilkat.PrivateKey.init();
    defer priv_key.deinit();
    try rsa.genKey(2048, priv_key);
    try priv_key.savePkcs8PemFile("qa_output/privKey.pem");

    const pub_key = try chilkat.PublicKey.init();
    defer pub_key.deinit();
    priv_key.toPublicKey(pub_key) catch {};

    rsa.setEncodingMode("base64");
    const plain_text = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890";
    const b_use_private_key = false;
    rsa.usePublicKey(pub_key) catch {};
    const encrypted_str = try rsa.encryptStringENC(alloc, plain_text, b_use_private_key);

    const bd = try chilkat.BinData.init();
    defer bd.deinit();
    bd.appendEncoded(encrypted_str, "base64") catch {};
    try bd.writeFile("qa_output/enc.dat");

    // The OpenSSL command to decrypt is:
    // openssl pkeyutl -in enc.dat -inkey privKey.pem -keyform PEM -pkeyopt rsa_padding_mode:pkcs1 -decrypt

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