bitchat

mirror of https://github.com/permissionlesstech/bitchat.git synced 2026-07-25 19:25:20 +00:00

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callebtc 9bac52051a Revert Noise nonce size to 4 bytes for backward compatibility

This change reverts the nonce size increase introduced in f41a390 ('BCH-01-010: Noise Protocol spec compliance improvements').

While 8-byte nonces are recommended by the Noise specification, increasing the size from 4 bytes broke wire compatibility with existing clients. This caused all encrypted DMs to fail between updated and non-updated clients.

Changes:
- Revert NONCE_SIZE_BYTES to 4.
- Restore 4-byte nonce extraction logic in extractNonceFromCiphertextPayload.
- Restore 4-byte nonce serialization in nonceToBytes.
- Restore UInt32.max overflow check in encrypt.

Note: Other improvements from BCH-01-010 (constant-time comparisons, safe arithmetic in replay window, sensitive data clearing) are preserved.

2026-01-14 05:41:26 +07:00

_PreviewHelpers

fix(security): improve keychain error handling [BCH-01-009]

2026-01-12 10:53:02 -10:00

Assets.xcassets

Cleanup (#793 )

2025-10-11 21:28:28 +02:00

Features

fix(build): exclude allowBluetoothHFP on iOS Simulator

2025-12-09 14:50:34 +04:00

Identity

PeerID 5/n: Ephemeral and Secure Identities (#742 )