Arduino/pico-fido
1
0
Fork 1
mirror of https://github.com/polhenarejos/pico-fido.git synced 2025-12-18 09:30:04 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix public key size.

Browse Source 
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-09-28 20:46:45 +02:00
parent 1e7d711c03
commit 958a20ce11
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/fido/cbor_make_credential.c
View File

@@ -289,7 +289,7 @@ int cbor_make_credential(const uint8_t *data, size_t len) {
const mbedtls_ecp_curve_info *cinfo = mbedtls_ecp_curve_info_from_grp_id(ekey.grp.id);
if (cinfo == NULL)
CBOR_ERROR(CTAP1_ERR_OTHER);
size_t olen = 0, pkey_len = ceil((float)cinfo->bit_size/8);
size_t olen = 0;
uint32_t ctr = get_sign_counter();
uint8_t cbor_buf[1024];
cbor_encoder_init(&encoder, cbor_buf, sizeof(cbor_buf), 0);
@@ -301,11 +301,11 @@ int cbor_make_credential(const uint8_t *data, size_t len) {
CBOR_CHECK(cbor_encode_negative_int(&mapEncoder, 1));
CBOR_CHECK(cbor_encode_uint(&mapEncoder, curve));
CBOR_CHECK(cbor_encode_negative_int(&mapEncoder, 2));
mbedtls_mpi_write_binary(&ekey.Q.X, pkey, pkey_len);
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, pkey, pkey_len));
mbedtls_mpi_write_binary(&ekey.Q.X, pkey, mbedtls_mpi_size(&ekey.Q.X));
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, pkey, mbedtls_mpi_size(&ekey.Q.X)));
CBOR_CHECK(cbor_encode_negative_int(&mapEncoder, 3));
mbedtls_mpi_write_binary(&ekey.Q.Y, pkey, pkey_len);
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, pkey, pkey_len));
mbedtls_mpi_write_binary(&ekey.Q.Y, pkey, mbedtls_mpi_size(&ekey.Q.Y));
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, pkey, mbedtls_mpi_size(&ekey.Q.Y)));
CBOR_CHECK(cbor_encoder_close_container(&encoder, &mapEncoder));
size_t rs = cbor_encoder_get_buffer_size(&encoder, cbor_buf);