- scp81.py: PSK TLS listener (stdlib ssl PSK callbacks) speaking the GP
HTTP administration dialog; configurable framing (chunked/Content-Length,
TLS record split, Apache-style/compact headers, Connection header,
keep-alive, Next-URI template with %d, TLS version/cipher, answer delay,
keylog for capture decryption)
- server.py: script responder + Response Scripting parsing (AF/AB, 80/23
TLVs), memory decoder, SCP81 start options, terminal-side timer
management, background-mode BIP events, permissive OPEN CHANNEL
- BIP fix: the RECEIVE DATA channel-data TLV length is BER long form
(36 81 <len>) above 127 bytes; a raw length byte is mis-parsed on the
card, so the large TLS records never reached its stack (a live card
fetched the script response and silently never processed it - endless
resume). The card now executes scripts and returns R-APDUs: memory
(13 applets, 50646 B NV free, 2402 B volatile), ISD, stored HTTP OTA
parameters, ELF and application registries
- frontend: SCP81 tab (listener, script selection, HTTP OTA log), phone
event forms, i18n; service worker v141
- docs: api.md, scp81-findings.md (attempt matrix + root cause analysis);
tools/scp81_decrypt.py decrypts listener captures via the keylog
- tests: 187 python + 337 frontend
Groundwork for HTTP OTA emulation (GP RAM over HTTP / SCP81): the server
now emulates the terminal side of Bearer Independent Protocol and redirects
the card's TCP channel to a locally configured target.
- new pysim_otaman_server/httpota.py: BER-TLV parser for proactive commands,
BipTerminal (per-channel TCP client with rx buffering, redirect target,
bounded event log) and TcpDumpServer (raw capture listener used to
calibrate the card's TLS ClientHello before the PSK platform exists)
- server.py: BIP commands 0x40-0x43 (+0x44) are handled in
_handle_proactive_chain with TR payloads matching the captured real
terminal traces (result first, Channel status with link-established bit,
Bearer description, Buffer size, Channel data/length); connection
failures return result 3A/00; names and decoders added for the proactive
log; /api/scp81/status, /log, /log-clear and /bip (start/stop dump mode)
- tests: TR byte vectors from the traces, TLV parsing, open/send/receive/
close flow over a local peer, dump listener; 123 Python tests pass
catarrh