import base64 # Example Base64 encoded N value b64_n = "33dSdlKWda7L8qG94uQHfd21KnwjnbyCyMj44gTS5olb7Aejqsu8fB2lzNJhpWf6bDpFQ3iAWIXjuDQLPHGnQqHasDPEcJdlcQOJn6Sqgj2PnbuE2bBASXEefzjssDJyiZdqMWGRp41E_TlqUcoShkMjf95N_4KlvjsOTb9I99iAA3ouTWcfHA4N7Ln3fzL-BNYlVtbxTCCT-u4kyC0HewrNltZVNiJPV-FxH9FVKvqZQIv-ZCM6EgnXnU9broBZEENIEK02yYvyjqxwPnku96J4MdDItY9qyiNTzSNkHyNK0ds-kagMLT2EP7mR2EAryCv0ZDgJKQlIw4xYH91MKQ" # 1. Decode the string # If it's standard Base64: # n_bytes = base64.urlsafe_b64decode(b64_n) # If it's Base64URL (common in JWKs): n_bytes = base64.urlsafe_b64decode(b64_n + "==") # 2. Convert bytes to integer (Big-Endian) n_integer = int.from_bytes(n_bytes, byteorder="big") print(f"Integer Value: {n_integer}")