[PATCH] Add A5/3-4 cipher support

Max.Suraev at fairwaves.co
Tue Jun 17 18:28:24 UTC 2014


17.06.2014 20:05, Sylvain Munaut пишет:

> static inline uint32_t
> osmo_a5_fn(uint32_t fn_count)
> {
>         int t1 = fn_count >> 11;
>         int t2 = fn_count & 0x1f;
>         int t3 = (fn_count >> 5) & 0x3f;
>         return (t1 * 26 * 51) + ((t3 - t2 + 26) % 26) * 51 + t3;
> }
> 
> There, it's written. No need to debug it, it's correct. No need to
> test it, it's going to be in the test path of the A5/[3,4] test and
> tested automatically as part of them.
> 

Surprisingly those tests fail for some of the test vectors for me.
How exactly you've applied and tested this function?
Could you share entire a5_test.c?


-- 
best regards,
Max, http://fairwaves.co




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