git / line-protocol

Commit 899b848fd4ca045304bc3aa38e8fad85ed412738

Authored by Matti Virkkunen
1 parent 17fa84ae

Added note about possible use of xxHash.

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line-android.md
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... ... @@ -39,10 +39,14 @@ the client and the server to encrypt the body with AES in CBC mode with a fixed
39 39 is reset for each message. Cryptanalysts may have something to say about the fixed IV and new
40 40 context for each message.
41 41  
42   -The AES encrypted messages are signed with a custom 64-bit MAC called legy_hmac, which is curiously
  42 +The AES encrypted messages are signed with a custom 32-bit HMAC called legy_hmac, which is curiously
43 43 only available in native code. I haven't yet analyzed how it works. I am not sure if the native
44 44 library approach is taken to enable code re-use between platforms, or as some futile attempt to add
45   -security by obscurity.
  45 +security by obscurity. It seems to be built on this hash algorithm:
  46 +
  47 +https://github.com/Cyan4973/xxHash
  48 +
  49 +Interestingly they seem to have forgotten to include the copyright notice for xxHash in their app.
46 50  
47 51 (TODO)
48 52  
... ...