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Rev: nettle/ChangeLog:1.135

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 2011-02-07  Niels Möller  <nisse@lysator.liu.se>
 
+       Introduced 4-bit tables. If enabled, gives gmac performance of 19
+       cycles per byte (still on intel x86_64).
+       * gcm.c (gcm_gf_shift_chunk): New implementation for 8-bit tables.
+       (gcm_gf_mul_chunk): Likewise.
+       (gcm_set_key): Generate 8-bit tables.
+
        * Makefile.in (SOURCES): Added gcmdata.c.
 
        * gcm.h (GCM_TABLE_BITS): Set to 4.