Zig

PBKDF1 - Derive Key from Password

See more Encryption Examples

Demonstrates how to derive a symmetric encryption key from a password using PBKDF1. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

It also matches the output produced by the .NET Framework using this C# code:

            byte[] salt = new byte[] { 0x78, 0x57, 0x8E, 0x5A, 0x5D, 0x63, 0xCB, 0x06 };
            PasswordDeriveBytes cdk = new PasswordDeriveBytes("password", salt);

            cdk.IterationCount = 1000;
            cdk.HashName = "SHA1";

            // generate a 16-byte key
            byte[] key = cdk.GetBytes(16);

Zig

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

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

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

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

    // http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

    const pw = "password";
    const pw_charset = "ansi";
    // Hash algorithms may be: sha1, md2, md5, etc.
    const hash_alg = "sha1";
    // The salt should be 8 bytes:
    const salt_hex = "78578E5A5D63CB06";
    const iteration_count = 1000;
    // Derive a 128-bit key from the password.
    const output_bit_len = 128;

    // The derived key is returned as a hex or base64 encoded string.
    // (Note: The salt argument must be a string that also uses
    // the same encoding.)
    const enc = "hex";

    const hex_key = try crypt.pbkdf1(alloc, pw, pw_charset, hash_alg, salt_hex, iteration_count, output_bit_len, enc);

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

    // The output should have this value:
    // DC19847E05C64D2FAF10EBFB4A3D2A20
}