qoherent/ria-ran--sim-drop
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ria-ran--sim-drop/CHANGELOG.md
A ashkan@beigi.net 1ade8dfc2c Phase 2: real 3GPP profile encodings + changelog 
Upgrade create_esim_profile from a loose JSON mock to a structured
profile-package-v2 that embeds real 3GPP field encodings:
- enc_iccid: EF_ICCID nibble-swapped BCD, 10-byte 0xF-padded (TS 31.102 4.2.1)
- enc_imsi:  EF_IMSI length octet + parity nibble + nibble-swapped BCD (4.2.2)
- build_lpa_activation_code: SGP.22 LPA:1$<smdp>$<matching-id> string

Wire apn and smdp_address through config into the provisioning call; add
smdp_address to config.yaml.example. Add CHANGELOG.md.

Full SGP.22 SAIP/ASN.1 UPP generation via osmocom pySim remains a follow-up
(not on PyPI; needs SM-DP+/LPA for OTA install) and is noted in the changelog.

Tests: +9 (encoders, round-trips, activation code); 53 pass.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 06:03:48 +00:00

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Changelog

All notable changes to this project are documented here.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Added

  • Phase-2 profile generation. create_esim_profile now emits a structured profile package with real 3GPP encodings instead of a loose JSON mock:
    • enc_iccid — EF_ICCID encoding (nibble-swapped BCD, 10-byte, 0xF padded) per 3GPP TS 31.102 §4.2.1.
    • enc_imsi — EF_IMSI encoding (length octet + parity nibble + nibble-swapped BCD) per 3GPP TS 31.102 §4.2.2.
    • build_lpa_activation_code — SGP.22 LPA activation string (LPA:1$<smdp>$<matching-id>) so the profile carries a device-consumable activation reference.
  • CHANGELOG.md.

Changed

  • Profile package type is now profile-package-v2; it embeds the raw credentials plus the encoded EF byte values and the LPA activation code.

Fixed

  • generate_imsi hardcoded a 10-digit MSIN, producing invalid 16-digit IMSIs for a 3-digit MNC (e.g. MCC 302 / MNC 720). MSIN length is now 15 - len(mcc) - len(mnc).
  • check_rate_limit compared timestamps as strings across mismatched formats (SQLite CURRENT_TIMESTAMP vs Python isoformat), making the rate-limit window unreliable. Both sides are now normalized via SQLite datetime().

Notes

  • Full SGP.22 SIMalliance Interoperable Profile (SAIP / ASN.1 UPP) generation via osmocom pySim remains the follow-up step; it needs an SM-DP+ / LPA to be installed onto consumer devices over the air. The current package targets programmable SIMs and core-network sync.

[0.1.0] — 2026-07-01

Added

  • Initial Phase-1 closed-loop eSIM provisioning stack: Flask API, SQLite subscriber store, credential generator (IMSI/Ki/OPc/ICCID), Open5GS and free5gc core adapters, captive portal, operational scripts, systemd units, network configs, and a test suite.