kdxcxs
/
n2n
mirror of https://github.com/ntop/n2n.git
1
0
Fork 0
Code Issues Releases Wiki Activity
Browse Source

sse code clean up

pull/404/head
Logan007 4 years ago
parent
1925c2df42
commit
7f8d1ac5a2
1 changed files with 11 additions and 40 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 47
      src/cc20.c

47
src/cc20.c
View File

@ -128,10 +128,15 @@ int cc20_crypt (unsigned char *out, const unsigned char *in, size_t in_len,
CC20_ODD_ROUND (A, B, C, D); \ CC20_ODD_ROUND (A, B, C, D); \
CC20_EVEN_ROUND(A, B, C, D) CC20_EVEN_ROUND(A, B, C, D)
#define STOREXOR(O,I,X) \
_mm_storeu_si128 ((__m128i*)O, \
_mm_xor_si128 (_mm_loadu_si128((__m128i*)I), X)); \
I += 16; O += 16 \
int cc20_crypt (unsigned char *out, const unsigned char *in, size_t in_len, int cc20_crypt (unsigned char *out, const unsigned char *in, size_t in_len,
const unsigned char *iv, cc20_context_t *ctx) { const unsigned char *iv, cc20_context_t *ctx) {
__m128i a, b, c, d, k0, k1, k2, k3, k4, k5, k6, k7; __m128i a, b, c, d, k0, k1, k2, k3, k4, k5, k6, k7, k8, k9, k10, k11;
uint8_t *keystream8 = (uint8_t*)ctx->keystream32; uint8_t *keystream8 = (uint8_t*)ctx->keystream32;
@ -162,31 +167,8 @@ int cc20_crypt (unsigned char *out, const unsigned char *in, size_t in_len,
k0 = ADD(k0, a); k1 = ADD(k1, b); k2 = ADD(k2, c); k3 = ADD(k3, d); k0 = ADD(k0, a); k1 = ADD(k1, b); k2 = ADD(k2, c); k3 = ADD(k3, d);
k4 = ADD(k4, a); k5 = ADD(k5, b); k6 = ADD(k6, c); k7 = ADD(k7, d); k7 = ADD(k7, ONE); k4 = ADD(k4, a); k5 = ADD(k5, b); k6 = ADD(k6, c); k7 = ADD(k7, d); k7 = ADD(k7, ONE);
_mm_storeu_si128 ((__m128i*)out, STOREXOR(out, in, k0); STOREXOR(out, in, k1); STOREXOR(out, in, k2); STOREXOR(out, in, k3);
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k0)); STOREXOR(out, in, k4); STOREXOR(out, in, k5); STOREXOR(out, in, k6); STOREXOR(out, in, k7);
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k1));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k2));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k3));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k4));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k5));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k6));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k7));
in += 16; out += 16;
// increment counter, make sure it is and stays little endian in memory // increment counter, make sure it is and stays little endian in memory
d = ADD(d, TWO); d = ADD(d, TWO);
@ -212,18 +194,7 @@ int cc20_crypt (unsigned char *out, const unsigned char *in, size_t in_len,
k0 = ADD(k0, a); k1 = ADD(k1, b); k2 = ADD(k2, c); k3 = ADD(k3, d); k0 = ADD(k0, a); k1 = ADD(k1, b); k2 = ADD(k2, c); k3 = ADD(k3, d);
_mm_storeu_si128 ((__m128i*)out, STOREXOR(out, in, k0); STOREXOR(out, in, k1); STOREXOR(out, in, k2); STOREXOR(out, in, k3);
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k0));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k1));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k2));
in += 16; out += 16;
_mm_storeu_si128 ((__m128i*)out,
_mm_xor_si128 (_mm_loadu_si128((__m128i*)in), k3));
in += 16; out += 16;
// increment counter, make sure it is and stays little endian in memory // increment counter, make sure it is and stays little endian in memory
d = ADD(d, ONE); d = ADD(d, ONE);

Write Preview
Loading…
Cancel
Save