Reijaff Reijaff

Reijaff / string_to_hash_djb2.zig

Created January 20, 2023 21:32

convert string to djb2 hash at compile time in zig

	const std = @import("std");

	fn hash_string_djb2(comptime string: []const u8) u64 {
	var hash: u64 = 5381;

	inline for (string) \|chr\| {
	hash = ((hash << 5) + hash) + chr;
	}

	return hash;

Reijaff / stack_string.zig

Created January 20, 2023 21:22

convert string to stack string at compile time in zig

	const std = @import("std");

	fn stack_string(comptime string: []const u8) [string.len]u8{
	var new_string: [string.len]u8 = undefined;

	inline for (string) \|chr, idx\|{
	new_string[idx] = chr;
	}

	return new_string;

Reijaff / string_obfuscation_stackstring.zig

Created January 20, 2023 21:17

primitive compile time string obfuscation in zig, stack strings, position independent code

	const std = @import("std");

	fn _x(comptime string: []const u8) [string.len]u8 {
	var encrypted_string: [string.len]u8 = undefined;
	var decrypted_string: [string.len]u8 = undefined;

	inline for (string) \|chr, idx\| {
	encrypted_string[idx] = chr ^ 0x99;
	}

Reijaff / comptime_rand.zig

Created September 9, 2022 11:14

primitive compile time random number generation in zig

	const std = @import("std");
	const RndGen = std.rand.DefaultPrng;

	fn rand_at_comptime() u32 {
	var rnd = RndGen.init(1337);
	var a = rnd.random().int(u32);

	return a;
	}

Reijaff / string_obfuscation.zig

Created September 8, 2022 16:15

primitive compile time string obfuscation in zig

	const std = @import("std");

	fn encrypt(comptime string: []const u8) []const u8{
	var new_string: [string.len]u8 = undefined;

	for (string) \|chr, idx\|{
	new_string[idx] = chr ^ 0xff;
	}

	return &new_string;