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Merge pull request #833 from trapexit/wyhash-fix

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wyhash: use safety mode 1
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trapexit 2020-09-24 09:03:10 -04:00 committed by GitHub
commit 562295be90
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1 changed files with 2 additions and 2 deletions
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src/wyhash.h
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@ -3,7 +3,7 @@
#define wyhash_final_version
//defines that change behavior
#ifndef WYHASH_CONDOM
#define WYHASH_CONDOM 0 //0,1,2
#define WYHASH_CONDOM 1 //0: read 8 bytes before and after boudaries, dangerous but fastest. 1: normal valid behavior 2: extra protection against entropy loss (probability=2^-63), aka. "blind multiplication"
#endif
#define WYHASH_32BIT_MUM 0 //faster on 32 bit system
//includes
@ -129,7 +129,7 @@ static inline void make_secret(uint64_t seed, uint64_t *secret){
for(size_t j=0;j<i;j++)
#if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__clang__)
if(__builtin_popcountll(secret[j]^secret[i])!=32){ ok=0; break; }
#elif defined(_MSC_VER)
#elif defined(_MSC_VER) && defined(_M_X64)
if(_mm_popcnt_u64(secret[j]^secret[i])!=32){ ok=0; break; }
#endif
if(!ok)continue;