diff --git a/NDWCSHAP_Generator.py b/NDWCSHAP_Generator.py
new file mode 100644
index 0000000..3c3028e
--- /dev/null
+++ b/NDWCSHAP_Generator.py
@@ -0,0 +1,82 @@
+# -*- coding: utf-8 -*-
+# NDWCSHAP Generator
+# Author: Lesserkuma (github.com/lesserkuma)
+
+import argparse, sys, re, base64, hashlib
+
+# From https://code.google.com/archive/p/wmb-asm/wikis/NintendoSpot.wiki
+offset_map = [ 0x17, 0x14, 0x11, 0x0D, 0x0B, 0x06, 0x0F, 0x0E, 0x09, 0x15, 0x0C, 0x04, 0x02, 0x01, 0x12, 0x10, 0x05, 0x03, 0x13, 0x0A, 0x07, 0x08, 0x00, 0x16 ]
+xor_key1 = b"952uybjnpmu903bia@bk5m[-"
+xor_key2 = b"38g6zxjk20gvmv]6^=j&%vY1"
+
+def ssid2cfg(ssid):
+	data = bytearray(base64.b64decode(ssid.encode("ascii")))
+	for i in range(0, len(data)):
+		data[i] ^= xor_key1[i]
+	data_new = bytearray([0] * len(data))
+	for offset, i in enumerate(offset_map):
+		data_new[i] = data[offset]
+	for i in range(0, len(data_new)):
+		data_new[i] ^= xor_key2[i]
+	return data_new
+
+def cfg2ssid(data):
+	data = bytearray(data)
+	for i in range(0, len(data)):
+		data[i] ^= xor_key2[i]
+	data_new = bytearray([0] * len(data))
+	for offset, i in enumerate(offset_map):
+		data_new[offset] = data[i]
+	for i in range(0, len(data_new)):
+		data_new[i] ^= xor_key1[i]
+	return base64.b64encode(data_new).decode("ascii")
+
+####
+class ArgParseCustomFormatter(argparse.ArgumentDefaultsHelpFormatter, argparse.RawDescriptionHelpFormatter): pass
+
+print("NDWCSHAP Generator v1.0\nby Lesserkuma\n")
+parser = argparse.ArgumentParser()
+parser.add_argument("--apnum", help="generates SSID and WEP key based on apnum provided", type=str, default=False)
+parser.add_argument("--ssid", help="generates WEP key and apnum based on SSID provided", type=str, default=False)
+args = parser.parse_args()
+
+if args.ssid:
+	if len(args.ssid) != 32 or not re.match(r"^[A-Za-z0-9+/]*={0,2}$", args.ssid):
+		print(f"Error: The SSID must be a 32 character base64 string.")
+		sys.exit(1)
+	cfg = ssid2cfg(ssid=args.ssid)
+	wep_key = hashlib.md5(cfg).digest()[-0xD:]
+	magic = cfg[0:8]
+	if magic != b"NDWCSHAP":
+		print(f"Error: “{args.ssid:s}” is not a valid NDWCSHAP SSID.")
+		sys.exit(1)
+	apnum = cfg[8:18]
+	try:
+		apnum = apnum.decode("ascii")
+	except:
+		apnum = '0x' + ', 0x'.join(format(x, '02X') for x in apnum)
+		print("Error: Invalid apnum bytes:", apnum)
+		sys.exit(1)
+	
+	print(f"SSID:    {args.ssid:s}")
+	print(f"WEP Key: {wep_key.hex():s}")
+	print(f"Apnum:   {apnum:s}")
+
+elif args.apnum:
+	apnum = args.apnum.rjust(10, "0")[:10]
+	try:
+		cfg = list(b"NDWCSHAP" + apnum.encode("ascii"))
+	except:
+		print("Error: Invalid apnum.")
+		sys.exit(1)
+	cfg += [ 0x1C, 0x01, 0x20, 0x9D, 0x68, 0xAF ]
+	cfg = bytearray(cfg)
+	ssid = cfg2ssid(data=cfg)
+	wep_key = hashlib.md5(cfg).digest()[-0xD:]
+
+	print(f"SSID:    {ssid:s}")
+	print(f"WEP Key: {wep_key.hex():s}")
+	print(f"Apnum:   {apnum:s}")
+
+else:
+	parser.print_help()