diff options
author | Niels Möller <nisse@lysator.liu.se> | 2004-06-08 17:26:15 +0200 |
---|---|---|
committer | Niels Möller <nisse@lysator.liu.se> | 2004-06-08 17:26:15 +0200 |
commit | 5bbf1a4daf25c6fa068cb80c74949322d6fa581f (patch) | |
tree | c591104f2f9f811264e5b0aa56584eaa90ab30ba | |
parent | 8a6aff6e60830852b4c731a017692cf3a2fdc425 (diff) | |
download | nettle-5bbf1a4daf25c6fa068cb80c74949322d6fa581f.tar.gz |
Renamed log and ilog to gf2_log and gf2_exp.
Rev: src/nettle/aesdata.c:1.4
-rw-r--r-- | aesdata.c | 26 |
1 files changed, 13 insertions, 13 deletions
@@ -23,8 +23,8 @@ uint8_t sbox[0x100]; uint8_t isbox[0x100]; -uint8_t log[0x100]; -uint8_t ilog[0x100]; +uint8_t gf2_log[0x100]; +uint8_t gf2_exp[0x100]; uint32_t dtable[4][0x100]; uint32_t itable[4][0x100]; @@ -51,30 +51,30 @@ compute_log(void) unsigned i = 0; unsigned x = 1; - memset(log, 0, 0x100); + memset(gf2_log, 0, 0x100); for (i = 0; i < 0x100; i++, x = x ^ xtime(x)) { - ilog[i] = x; - log[x] = i; + gf2_exp[i] = x; + gf2_log[x] = i; } /* Invalid. */ - log[0] = 0; - /* The loop above sets log[1] = 0xff, which is correct, - * but log[1] = 0 is nicer. */ - log[1] = 0; + gf2_log[0] = 0; + /* The loop above sets gf2_log[1] = 0xff, which is correct, + * but gf2_log[1] = 0 is nicer. */ + gf2_log[1] = 0; } static unsigned mult(unsigned a, unsigned b) { - return (a && b) ? ilog[ (log[a] + log[b]) % 255] : 0; + return (a && b) ? gf2_exp[ (gf2_log[a] + gf2_log[b]) % 255] : 0; } static unsigned invert(unsigned x) { - return x ? ilog[0xff - log[x]] : 0; + return x ? gf2_exp[0xff - gf2_log[x]] : 0; } static unsigned @@ -188,8 +188,8 @@ main(int argc, char **argv) compute_log(); if (argc == 1) { - display_byte_table("log", log); - display_byte_table("ilog", ilog); + display_byte_table("gf2_log", gf2_log); + display_byte_table("gf2_exp", gf2_exp); compute_sbox(); display_byte_table("sbox", sbox); |