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Diffstat (limited to 'src/lib/libcrypto/bn/bn_exp.c')
-rw-r--r--src/lib/libcrypto/bn/bn_exp.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/src/lib/libcrypto/bn/bn_exp.c b/src/lib/libcrypto/bn/bn_exp.c
index 5d9263e01e..a27373c97b 100644
--- a/src/lib/libcrypto/bn/bn_exp.c
+++ b/src/lib/libcrypto/bn/bn_exp.c
@@ -114,11 +114,6 @@
114#include "bn_lcl.h" 114#include "bn_lcl.h"
115 115
116#include <stdlib.h> 116#include <stdlib.h>
117#if defined(__GNUC__)
118# ifndef alloca
119# define alloca(s) __builtin_alloca((s))
120# endif
121#endif
122 117
123/* maximum precomputation table size for *variable* sliding windows */ 118/* maximum precomputation table size for *variable* sliding windows */
124#define TABLE_SIZE 32 119#define TABLE_SIZE 32
@@ -632,12 +627,6 @@ BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
632 numPowers = 1 << window; 627 numPowers = 1 << window;
633 powerbufLen = sizeof(m->d[0]) * (top * numPowers + 628 powerbufLen = sizeof(m->d[0]) * (top * numPowers +
634 ((2*top) > numPowers ? (2*top) : numPowers)); 629 ((2*top) > numPowers ? (2*top) : numPowers));
635#ifdef alloca
636 if (powerbufLen < 3072)
637 powerbufFree = alloca(powerbufLen +
638 MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH);
639 else
640#endif
641 if ((powerbufFree = (unsigned char*)malloc(powerbufLen + 630 if ((powerbufFree = (unsigned char*)malloc(powerbufLen +
642 MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH)) == NULL) 631 MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH)) == NULL)
643 goto err; 632 goto err;
@@ -645,11 +634,6 @@ BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
645 powerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree); 634 powerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);
646 memset(powerbuf, 0, powerbufLen); 635 memset(powerbuf, 0, powerbufLen);
647 636
648#ifdef alloca
649 if (powerbufLen < 3072)
650 powerbufFree = NULL;
651#endif
652
653 /* lay down tmp and am right after powers table */ 637 /* lay down tmp and am right after powers table */
654 tmp.d = (BN_ULONG *)(powerbuf + sizeof(m->d[0]) * top * numPowers); 638 tmp.d = (BN_ULONG *)(powerbuf + sizeof(m->d[0]) * top * numPowers);
655 am.d = tmp.d + top; 639 am.d = tmp.d + top;