Remove unused code from hitag2.c

[proxmark3-svn] / armsrc / hitag2.c

diff --git a/armsrc/hitag2.c b/armsrc/hitag2.c
index 26ab10667d132739928519c9092bb2a298472e81..886e19707825d127a0a786a130fc6d61e51a7f52 100644 (file)
--- a/armsrc/hitag2.c
+++ b/armsrc/hitag2.c
@@ -242,52 +242,6 @@ static u64 _hitag2_round (u64 *state)
        return _f20 (x);
 }
 
-// Bitslice Hitag2 functions:
-
-#define ht2bs_4a(a,b,c,d)      (~(((a|b)&c)^(a|d)^b))
-#define ht2bs_4b(a,b,c,d)      (~(((d|c)&(a^b))^(d|a|b)))
-#define ht2bs_5c(a,b,c,d,e)    (~((((((c^e)|d)&a)^b)&(c^b))^(((d^e)|a)&((d^b)|c))))
-
-#define uf20bs                         u32             // choose your own type/width
-
-static uf20bs _f20bs (const uf20bs *x)
-{
-       return ht2bs_5c (
-               ht2bs_4a(x[ 1],x[ 2],x[ 4],x[ 5]),
-               ht2bs_4b(x[ 7],x[11],x[13],x[14]),
-               ht2bs_4b(x[16],x[20],x[22],x[25]),
-               ht2bs_4b(x[27],x[28],x[30],x[32]),
-               ht2bs_4a(x[33],x[42],x[43],x[45]));
-}
-
-static void _hitag2bs_init (uf20bs *x, const uf20bs *key, const uf20bs *serial, const uf20bs *IV)
-{
-       u32                                     i, r;
-       
-       for (i = 0; i < 32; i++) x[i] = serial[i];
-       for (i = 0; i < 16; i++) x[32+i] = key[i];
-       
-       for (r = 0; r < 32; r++)
-       {
-               for (i = 0; i < 47; i++) x[i] = x[i+1];
-               x[47] = _f20bs (x) ^ IV[i] ^ key[16+i];
-       }
-}
-
-static uf20bs _hitag2bs_round (uf20bs *x)
-{
-       uf20bs                          y;
-       u32                                     i;
-       
-       y = x[ 0] ^ x[ 2] ^ x[ 3] ^ x[ 6] ^ x[ 7] ^ x[ 8] ^ x[16] ^ x[22]
-         ^ x[23] ^ x[26] ^ x[30] ^ x[41] ^ x[42] ^ x[43] ^ x[46] ^ x[47];
-       
-       for (i = 0; i < 47; i++) x[i] = x[i+1];
-       x[47] = y;
-       
-       return _f20bs (x);
-}
-
 static u32 _hitag2_byte (u64 * x)
 {
        u32                                     i, c;