import hmac
import hashlib
import time
import struct
import base64
def get_totp(secret_base32: str, interval: int = 30) -> str:
1. Decode base32 secret
key = base64.b32decode(secret_base32.replace(” ”, "").upper())
2. Calculate time step
time_step = int(time.time()) // interval
msg = struct.pack(“>Q”, time_step)
3. HMAC-SHA1 hash
digest = hmac.new(key, msg, hashlib.sha1).digest()
4. Dynamic Truncation
offset = digest[-1] & 0x0F
code_int = struct.unpack(“>I”, digest[offset:offset+4])[0] & 0x7FFFFFFF
5. Extract 6 digits
return str(code_int % 1000000).zfill(6)
if name == “main”:
print(“رمز TOTP الحالي:”, get_totp(“JBSWY3DPEHPK3PXP”))