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c-kzg-4844
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Allocate space in new_kzg_settings for the secrets

This commit is contained in:
Ben Edgington 2021-02-12 12:11:48 +00:00
parent ed33a391f5
commit 9111f47f13
1 changed files with 21 additions and 8 deletions
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29
src/kzg_proofs.c
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@ -17,7 +17,9 @@
/** @file kzg_proofs.c */
#include <stddef.h> // NULL
#include <stdlib.h> // free()
#include "kzg_proofs.h"
#include "c_kzg_util.h"
void commit_to_poly(blst_p1 *out, const poly *p, const KZGSettings *ks) {
linear_combination_g1(out, ks->secret_g1, p->coeffs, p->length);
@ -115,17 +117,28 @@ C_KZG_RET check_proof_multi(bool *out, const blst_p1 *commitment, const blst_p1
return C_KZG_OK;
}
// We don't allocate space for the secrets s1 and s2 here as they are assumed to be pre-generated
C_KZG_RET new_kzg_settings(KZGSettings *ks, blst_p1 *secret_g1, blst_p2 *secret_g2, uint64_t length, FFTSettings *fs) {
ASSERT(length >= fs->max_width, C_KZG_BADARGS);
ks->fs = fs;
ks->secret_g1 = secret_g1;
ks->extended_secret_g1 = NULL; // What's this for?
ks->secret_g2 = secret_g2;
ASSERT(length >= fs->max_width, C_KZG_BADARGS);
ks->length = length;
// Allocate space for the secrets
ASSERT(c_kzg_malloc((void **)&ks->secret_g1, ks->length * sizeof *ks->secret_g1) == C_KZG_OK, C_KZG_MALLOC);
ASSERT(c_kzg_malloc((void **)&ks->secret_g2, ks->length * sizeof *ks->secret_g2) == C_KZG_OK, C_KZG_MALLOC);
// Populate the secrets
for (uint64_t i = 0; i < ks->length; i++) {
ks->secret_g1[i] = secret_g1[i];
ks->secret_g2[i] = secret_g2[i];
}
ks->fs = fs;
ks->extended_secret_g1 = NULL; // What's this for?
return C_KZG_OK;
}
// This is a no-op since s1 and s2 are assumed to have been provided externally
void free_kzg_settings(KZGSettings *ks) {}
void free_kzg_settings(KZGSettings *ks) {
free(ks->secret_g1);
free(ks->secret_g2);
ks->length = 0;
}