Zig

Demonstrates HMAC SHA256

See more Encryption Examples

Demonstrates HMAC-SHA256. Also demonstrates HMAC-SHA1 and HMAC-MD5. 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.

    // Demonstrates how to reproduce the following results found at
    // https://en.wikipedia.org/wiki/Hash-based_message_authentication_code

    // HMAC_SHA256("key", "The quick brown fox jumps over the lazy dog") = 0xf7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8
    // HMAC_MD5("key", "The quick brown fox jumps over the lazy dog")    = 0x80070713463e7749b90c2dc24911e275
    // HMAC_SHA1("key", "The quick brown fox jumps over the lazy dog")   = 0xde7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9

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

    crypt.setMacAlgorithm("hmac");
    crypt.setEncodingMode("hex");
    crypt.setMacKeyString("key") catch {};
    const s_data = "The quick brown fox jumps over the lazy dog";

    crypt.setHashAlgorithm("SHA-256");
    std.debug.print("HMAC_SHA256: {s}\n", .{try crypt.macStringENC(alloc, s_data)});

    crypt.setHashAlgorithm("MD5");
    std.debug.print("HMAC_MD5: {s}\n", .{try crypt.macStringENC(alloc, s_data)});

    crypt.setHashAlgorithm("SHA-1");
    std.debug.print("HMAC_SHA1: {s}\n", .{try crypt.macStringENC(alloc, s_data)});

    // The output is the same (ignore case)
    // HMAC_SHA256: F7BC83F430538424B13298E6AA6FB143EF4D59A14946175997479DBC2D1A3CD8
    // HMAC_MD5: 80070713463E7749B90C2DC24911E275
    // HMAC_SHA1: DE7C9B85B8B78AA6BC8A7A36F70A90701C9DB4D9
}