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tls: speed up xor'ing of aligned 16-byte buffers

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function                                             old     new   delta
xorbuf_aligned_AES_BLOCK_SIZE                          -      23     +23
xwrite_encrypted                                     585     580      -5
aesgcm_GHASH                                         233     228      -5
GMULT                                                192     187      -5
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(add/remove: 1/0 grow/shrink: 0/3 up/down: 23/-15)              Total: 8 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2018-11-24 14:08:29 +01:00
parent 941440cf16
commit 03569bc50f
3 changed files with 36 additions and 17 deletions
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4
networking/tls.h
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@@ -81,8 +81,12 @@ typedef int16_t int16;
#define AES_BLOCK_SIZE 16
void tls_get_random(void *buf, unsigned len) FAST_FUNC;
void xorbuf(void* buf, const void* mask, unsigned count) FAST_FUNC;
#define ALIGNED_long ALIGNED(sizeof(long))
void xorbuf_aligned_AES_BLOCK_SIZE(void* buf, const void* mask) FAST_FUNC;
#define matrixCryptoGetPrngData(buf, len, userPtr) (tls_get_random(buf, len), PS_SUCCESS)
#define psFree(p, pool) free(p)