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Use ecp keypair calc public instead.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2026-05-01 21:05:35 +02:00
parent 9865b697de
commit cf6be6c121
2 changed files with 3 additions and 3 deletions
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2
pico-keys-sdk

Submodule pico-keys-sdk updated: 92b8c644d8...9cb83e3abc

4
src/hsm/cmd_bip_slip.c
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@@ -53,7 +53,7 @@ static int node_derive_bip_child(const mbedtls_ecp_keypair *parent, const uint8_
memcpy(data + 1, iR, 32); memcpy(data + 1, iR, 32);
} while (mbedtls_mpi_cmp_mpi(&il, &parent->grp.N) != -1 || mbedtls_mpi_cmp_int(&kchild, 0) == 0); } while (mbedtls_mpi_cmp_mpi(&il, &parent->grp.N) != -1 || mbedtls_mpi_cmp_int(&kchild, 0) == 0);
mbedtls_mpi_copy(&child->d, &kchild); mbedtls_mpi_copy(&child->d, &kchild);
mbedtls_ecp_mul(&child->grp, &child->Q, &child->d, &child->grp.G, random_fill_iterator, NULL); mbedtls_ecp_keypair_calc_public(child, random_fill_iterator, NULL);
memcpy(cchild, iR, 32); memcpy(cchild, iR, 32);
mbedtls_mpi_free(&il); mbedtls_mpi_free(&il);
mbedtls_mpi_free(&kchild); mbedtls_mpi_free(&kchild);
@@ -115,7 +115,7 @@ static int load_master_bip(uint16_t mid, mbedtls_ecp_keypair *ctx, uint8_t chain
mbedtls_mpi_read_binary(&ctx->d, mkey + 1, 32); mbedtls_mpi_read_binary(&ctx->d, mkey + 1, 32);
memcpy(chain, mkey + 33, 32); memcpy(chain, mkey + 33, 32);
mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_fill_iterator, NULL); mbedtls_ecp_keypair_calc_public(ctx, random_fill_iterator, NULL);
} }
else if (mkey[0] == 0x3) { else if (mkey[0] == 0x3) {
mbedtls_mpi_read_binary(&ctx->d, mkey + 33, 32); mbedtls_mpi_read_binary(&ctx->d, mkey + 33, 32);