frost/secp256k1-zkp
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Expose ability to deep-copy a context

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This commit is contained in:
Andrew Poelstra
2015-04-11 14:06:54 -05:00
parent 3608c7f2f6
commit d899b5b67c
7 changed files with 91 additions and 0 deletions
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10
src/ecmult_gen_impl.h
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@@ -80,6 +80,16 @@ static int secp256k1_ecmult_gen_context_is_built(const secp256k1_ecmult_gen_cont
return ctx->prec != NULL;
}
static void secp256k1_ecmult_gen_context_clone(secp256k1_ecmult_gen_context_t *dst,
const secp256k1_ecmult_gen_context_t *src) {
if (src->prec == NULL) {
dst->prec = NULL;
} else {
dst->prec = (secp256k1_ge_storage_t (*)[64][16])checked_malloc(sizeof(*dst->prec));
memcpy(dst->prec, src->prec, sizeof(*dst->prec));
}
}
static void secp256k1_ecmult_gen_context_clear(secp256k1_ecmult_gen_context_t *ctx) {
free(ctx->prec);
ctx->prec = NULL;