diff options
Diffstat (limited to 'thirdparty/mbedtls/library/ecp.c')
| -rw-r--r-- | thirdparty/mbedtls/library/ecp.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/thirdparty/mbedtls/library/ecp.c b/thirdparty/mbedtls/library/ecp.c index 31a6b9e305..cfe02b0d2c 100644 --- a/thirdparty/mbedtls/library/ecp.c +++ b/thirdparty/mbedtls/library/ecp.c @@ -927,7 +927,7 @@ int mbedtls_ecp_point_read_binary(const mbedtls_ecp_group *grp, size_t plen; ECP_VALIDATE_RET(grp != NULL); ECP_VALIDATE_RET(pt != NULL); - ECP_VALIDATE_RET(buf != NULL); + ECP_VALIDATE_RET(ilen == 0 || buf != NULL); if (ilen < 1) { return MBEDTLS_ERR_ECP_BAD_INPUT_DATA; @@ -996,7 +996,7 @@ int mbedtls_ecp_tls_read_point(const mbedtls_ecp_group *grp, ECP_VALIDATE_RET(grp != NULL); ECP_VALIDATE_RET(pt != NULL); ECP_VALIDATE_RET(buf != NULL); - ECP_VALIDATE_RET(*buf != NULL); + ECP_VALIDATE_RET(buf_len == 0 || *buf != NULL); /* * We must have at least two bytes (1 for length, at least one for data) @@ -1068,7 +1068,7 @@ int mbedtls_ecp_tls_read_group(mbedtls_ecp_group *grp, mbedtls_ecp_group_id grp_id; ECP_VALIDATE_RET(grp != NULL); ECP_VALIDATE_RET(buf != NULL); - ECP_VALIDATE_RET(*buf != NULL); + ECP_VALIDATE_RET(len == 0 || *buf != NULL); if ((ret = mbedtls_ecp_tls_read_group_id(&grp_id, buf, len)) != 0) { return ret; @@ -1088,7 +1088,7 @@ int mbedtls_ecp_tls_read_group_id(mbedtls_ecp_group_id *grp, const mbedtls_ecp_curve_info *curve_info; ECP_VALIDATE_RET(grp != NULL); ECP_VALIDATE_RET(buf != NULL); - ECP_VALIDATE_RET(*buf != NULL); + ECP_VALIDATE_RET(len == 0 || *buf != NULL); /* * We expect at least three bytes (see below) @@ -2614,8 +2614,8 @@ static int ecp_mul_mxz(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, /* RP.X might be slightly larger than P, so reduce it */ MOD_ADD(RP.X); + /* Randomize coordinates of the starting point */ #if defined(MBEDTLS_ECP_NO_INTERNAL_RNG) - /* Derandomize coordinates of the starting point */ if (f_rng == NULL) { have_rng = 0; } @@ -3358,10 +3358,10 @@ cleanup: int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key, unsigned char *buf, size_t buflen) { - int ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE; + int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; ECP_VALIDATE_RET(key != NULL); - ECP_VALIDATE_RET(buf != NULL); + ECP_VALIDATE_RET(buflen == 0 || buf != NULL); #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED) if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) { |