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| author | Denys Vlasenko | 2019-01-10 20:18:02 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2019-01-10 20:18:02 +0100 |
| commit | 3109d1f9659ffad76f3cf2c547cc425ed34ae96c (patch) | |
| tree | be23fe6c6430064418387f2364718e6ede6fdee2 /networking | |
| parent | 6ca8e347fed8c24655df692f22694baf7c572770 (diff) | |
| download | busybox-3109d1f9659ffad76f3cf2c547cc425ed34ae96c.zip busybox-3109d1f9659ffad76f3cf2c547cc425ed34ae96c.tar.gz | |
tls: code shrink
function old new delta
lm_add 82 78 -4
curve25519 793 786 -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-11) Total: -11 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking')
| -rw-r--r-- | networking/tls_fe.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/networking/tls_fe.c b/networking/tls_fe.c index f235082..10971bb 100644 --- a/networking/tls_fe.c +++ b/networking/tls_fe.c @@ -43,17 +43,13 @@ typedef uint32_t word32; #if 0 //UNUSED static void fprime_copy(byte *x, const byte *a) { - int i; - for (i = 0; i < F25519_SIZE; i++) - x[i] = a[i]; + memcpy(x, a, F25519_SIZE); } #endif static void lm_copy(byte* x, const byte* a) { - int i; - for (i = 0; i < F25519_SIZE; i++) - x[i] = a[i]; + memcpy(x, a, F25519_SIZE); } #if 0 //UNUSED @@ -200,7 +196,7 @@ static void fe_load(byte *x, word32 c) static void fe_normalize(byte *x) { byte minusp[F25519_SIZE]; - word16 c; + unsigned c; int i; /* Reduce using 2^255 = 19 mod p */ @@ -219,13 +215,13 @@ static void fe_normalize(byte *x) */ c = 19; - for (i = 0; i + 1 < F25519_SIZE; i++) { + for (i = 0; i < F25519_SIZE - 1; i++) { c += x[i]; minusp[i] = (byte)c; c >>= 8; } - c += ((word16)x[i]) - 128; + c += ((unsigned)x[i]) - 128; minusp[31] = (byte)c; /* Load x-p if no underflow */ @@ -234,13 +230,13 @@ static void fe_normalize(byte *x) static void lm_add(byte* r, const byte* a, const byte* b) { - word16 c = 0; + unsigned c = 0; int i; /* Add */ for (i = 0; i < F25519_SIZE; i++) { c >>= 8; - c += ((word16)a[i]) + ((word16)b[i]); + c += ((unsigned)a[i]) + ((unsigned)b[i]); r[i] = (byte)c; } |