catarrh
d21997764f
Adds optional decryption of ciphered secured packets, entirely in the browser — the key never leaves the frontend. - decode.py: _decode_secured_packet exposes 'cipher_block' (the contiguous on-wire ciphered octets CNTR..end, ready for CBC) and raw kic/kid bytes for algorithm selection. Additive only. - index.html: pure-JS DES/3DES core (FIPS 46-3 bit-array tables, parity ignored) + CBC; AES-CBC via native SubtleCrypto; both with zero IV per TS 102 225. decryptSecured() picks the algorithm from the KIc nibble (02 AES-CBC, 05 3DES-2K, 09 3DES-3K, 01 DES) with key-length validation. - UI: ciphered packets show a key-hex input + Decrypt strip below the detail table; keys are memoized per key-set for the session in an in-memory OTA_KEYS map — never sent to the server, never persisted. - Decrypted results cached by cipher_block (survive live-polling re-renders); plaintext rows rendered as CNTR/PCNTR/RC/Secured data (decrypted) alongside the ciphertext; wrong-key guard via the decrypted padding counter (PCNTR > remaining → "invalid padding"). - 3DES implementation validated byte-identical against openssl des-ede3-cbc (3-key, 2-key ×3 random vectors, single-key). No CC verification (out of scope). Tests: +2 (cipher_block contiguity, AES registry guard) — 350 total. Version 1.19.0, SW cache simtrace-analyser-v27.
23 lines
587 B
Python
23 lines
587 B
Python
"""simtrace2-pysniff — Python replacement for simtrace2-sniff."""
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from .device import SniffSession, DeviceDisconnected, find_sniffer_device
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from .protocol import parse_message, SniffMessage
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from .gsmtap import GsmtapSender, GsmtapReceiver
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from .pcap import PcapWriter
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from .dump import FileDumper, format_message
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__version__ = '1.19.0'
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__all__ = [
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'SniffSession',
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'DeviceDisconnected',
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'find_sniffer_device',
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'parse_message',
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'SniffMessage',
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'GsmtapSender',
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'GsmtapReceiver',
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'PcapWriter',
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'FileDumper',
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'format_message',
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'__version__',
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]
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