From d4fe483efd3e0062f12430efe9deb66d43d914d7 Mon Sep 17 00:00:00 2001 From: irungentoo Date: Sat, 13 Jul 2013 10:09:38 -0400 Subject: NaCl moved to other repo. --- nacl/try-anything.c | 173 ---------------------------------------------------- 1 file changed, 173 deletions(-) delete mode 100644 nacl/try-anything.c (limited to 'nacl/try-anything.c') diff --git a/nacl/try-anything.c b/nacl/try-anything.c deleted file mode 100644 index b6847473..00000000 --- a/nacl/try-anything.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * try-anything.c version 20090215 - * D. J. Bernstein - * Public domain. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include "cpucycles.h" - -typedef int uint32; - -static uint32 seed[32] = { 3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2,6,4,3,3,8,3,2,7,9,5 } ; -static uint32 in[12]; -static uint32 out[8]; -static int outleft = 0; - -#define ROTATE(x,b) (((x) << (b)) | ((x) >> (32 - (b)))) -#define MUSH(i,b) x = t[i] += (((x ^ seed[i]) + sum) ^ ROTATE(x,b)); - -static void surf(void) -{ - uint32 t[12]; uint32 x; uint32 sum = 0; - int r; int i; int loop; - - for (i = 0;i < 12;++i) t[i] = in[i] ^ seed[12 + i]; - for (i = 0;i < 8;++i) out[i] = seed[24 + i]; - x = t[11]; - for (loop = 0;loop < 2;++loop) { - for (r = 0;r < 16;++r) { - sum += 0x9e3779b9; - MUSH(0,5) MUSH(1,7) MUSH(2,9) MUSH(3,13) - MUSH(4,5) MUSH(5,7) MUSH(6,9) MUSH(7,13) - MUSH(8,5) MUSH(9,7) MUSH(10,9) MUSH(11,13) - } - for (i = 0;i < 8;++i) out[i] ^= t[i + 4]; - } -} - -void randombytes(unsigned char *x,unsigned long long xlen) -{ - while (xlen > 0) { - if (!outleft) { - if (!++in[0]) if (!++in[1]) if (!++in[2]) ++in[3]; - surf(); - outleft = 8; - } - *x = out[--outleft]; - ++x; - --xlen; - } -} - -extern void preallocate(void); -extern void allocate(void); -extern void predoit(void); -extern void doit(void); -extern char checksum[]; -extern const char *checksum_compute(void); -extern const char *primitiveimplementation; - -static void printword(const char *s) -{ - if (!*s) putchar('-'); - while (*s) { - if (*s == ' ') putchar('_'); - else if (*s == '\t') putchar('_'); - else if (*s == '\r') putchar('_'); - else if (*s == '\n') putchar('_'); - else putchar(*s); - ++s; - } - putchar(' '); -} - -static void printnum(long long x) -{ - printf("%lld ",x); -} - -static void fail(const char *why) -{ - printf("%s\n",why); - exit(111); -} - -unsigned char *alignedcalloc(unsigned long long len) -{ - unsigned char *x = (unsigned char *) calloc(1,len + 256); - long long i; - if (!x) fail("out of memory"); - /* will never deallocate so shifting is ok */ - for (i = 0;i < len + 256;++i) x[i] = random(); - x += 64; - x += 63 & (-(unsigned long) x); - for (i = 0;i < len;++i) x[i] = 0; - return x; -} - -#define TIMINGS 63 -static long long cycles[TIMINGS + 1]; - -void limits() -{ -#ifdef RLIM_INFINITY - struct rlimit r; - r.rlim_cur = 0; - r.rlim_max = 0; -#ifdef RLIMIT_NOFILE - setrlimit(RLIMIT_NOFILE,&r); -#endif -#ifdef RLIMIT_NPROC - setrlimit(RLIMIT_NPROC,&r); -#endif -#ifdef RLIMIT_CORE - setrlimit(RLIMIT_CORE,&r); -#endif -#endif -} - -int main() -{ - long long i; - long long j; - long long abovej; - long long belowj; - long long checksumcycles; - long long cyclespersecond; - const char *problem; - - cyclespersecond = cpucycles_persecond(); - preallocate(); - limits(); - - allocate(); - srandom(getpid()); - - cycles[0] = cpucycles(); - problem = checksum_compute(); if (problem) fail(problem); - cycles[1] = cpucycles(); - checksumcycles = cycles[1] - cycles[0]; - - predoit(); - for (i = 0;i <= TIMINGS;++i) { - cycles[i] = cpucycles(); - } - for (i = 0;i <= TIMINGS;++i) { - cycles[i] = cpucycles(); - doit(); - } - for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i]; - for (j = 0;j < TIMINGS;++j) { - belowj = 0; - for (i = 0;i < TIMINGS;++i) if (cycles[i] < cycles[j]) ++belowj; - abovej = 0; - for (i = 0;i < TIMINGS;++i) if (cycles[i] > cycles[j]) ++abovej; - if (belowj * 2 < TIMINGS && abovej * 2 < TIMINGS) break; - } - - printword(checksum); - printnum(cycles[j]); - printnum(checksumcycles); - printnum(cyclespersecond); - printword(primitiveimplementation); - printf("\n"); - return 0; -} -- cgit v1.2.3