Zig

2-Key Triple DES (112 bits)

See more Encryption Examples

Demonstrates 2-Key Triple DES encryption (112-bit 3DES encryption). 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();

    // Specify 3DES for the encryption algorithm:
    crypt.setCryptAlgorithm("3des");

    crypt.setCipherMode("ecb");

    // For 2-Key Triple-DES, use a key length of 128
    // (Given that each byte's msb is a parity bit, the strength is really 112 bits).
    crypt.setKeyLength(128);

    // Pad with zeros
    crypt.setPaddingScheme(3);

    // EncodingMode specifies the encoding of the output for
    // encryption, and the input for decryption.
    // It may be "hex", "url", "base64", or "quoted-printable".
    crypt.setEncodingMode("hex");

    // Let's create a secret key by using the MD5 hash of a password.
    // The Digest-MD5 algorithm produces a 16-byte hash (i.e. 128 bits)
    crypt.setHashAlgorithm("md5");
    const key_hex = try crypt.hashStringENC(alloc, "secretPassword");

    // Set the encryption key:
    crypt.setEncodedKey(key_hex, "hex");

    // Encrypt
    const enc_str = try crypt.encryptStringENC(alloc, "The quick brown fox jumped over the lazy dog");
    std.debug.print("{s}\n", .{enc_str});

    // Now decrypt:
    const dec_str = try crypt.decryptStringENC(alloc, enc_str);
    std.debug.print("{s}\n", .{dec_str});
}