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feat: MTProto 2.0 Message Framing Implementation - #5

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feat/mtproto-2-framing-11713981959555172876
Jul 30, 2026
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feat: MTProto 2.0 Message Framing Implementation#5
SWORDIntel merged 1 commit into
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feat/mtproto-2-framing-11713981959555172876

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This PR implements MTProto 2.0 message framing entirely in pure Python, integrating it into the existing crypto_standalone framework. The implementation covers all four MTProto TCP transport formats (Abridged, Intermediate, Padded-intermediate, Full), cryptographic message envelopes using AES-IGE, simple message containers, and stateful session validation. Hard resource limits are implemented to prevent resource exhaustion, and side channels are mitigated through strict validation ordering. Comprehensive tests and documentation are included.


PR created automatically by Jules for task 11713981959555172876 started by @SWORDIntel

- Implemented pure-Python MTProto 2.0 message envelope encryption and decryption with AES-IGE.
- Implemented four incremental transport codecs: Abridged, Intermediate, Padded-intermediate, Full.
- Implemented stateful session and message ID validation.
- Implemented simple message container encoding and decoding.
- Added explicit type hints, dataclasses for limits, and dedicated framing exception models.
- Updated documentation and extended tests for all framing components.

Co-authored-by: SWORDIntel <117012829+SWORDIntel@users.noreply.github.com>
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@SWORDIntel
SWORDIntel merged commit 685a89d into main Jul 30, 2026
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SWORDIntel deleted the feat/mtproto-2-framing-11713981959555172876 branch July 30, 2026 13:09
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