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Add size constants for preallocated memory

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This commit is contained in:
Tim Ruffing
2018-10-22 16:23:09 +02:00
parent 1bf7c056ba
commit ef020de16f
5 changed files with 37 additions and 1 deletions
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10
src/ecmult_impl.h
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@@ -10,6 +10,7 @@
#include <string.h>
#include <stdint.h>
#include "util.h"
#include "group.h"
#include "scalar.h"
#include "ecmult.h"
@@ -310,6 +311,13 @@ static void secp256k1_ecmult_odd_multiples_table_storage_var(const int n, secp25
} \
} while(0)
static const size_t SECP256K1_ECMULT_CONTEXT_PREALLOCATED_SIZE =
ROUND_TO_ALIGN(sizeof((*((secp256k1_ecmult_context*) NULL)->pre_g)[0]) * ECMULT_TABLE_SIZE(WINDOW_G))
#ifdef USE_ENDOMORPHISM
+ ROUND_TO_ALIGN(sizeof((*((secp256k1_ecmult_context*) NULL)->pre_g_128)[0]) * ECMULT_TABLE_SIZE(WINDOW_G))
#endif
;
static void secp256k1_ecmult_context_init(secp256k1_ecmult_context *ctx) {
ctx->pre_g = NULL;
#ifdef USE_ENDOMORPHISM
@@ -442,7 +450,7 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a,
CHECK(carry == 0);
while (bit < 256) {
CHECK(secp256k1_scalar_get_bits(&s, bit++, 1) == 0);
}
}
#endif
return last_set_bit + 1;
}