diff options
Diffstat (limited to 'thirdparty/mbedtls/library/x509write_csr.c')
| -rw-r--r-- | thirdparty/mbedtls/library/x509write_csr.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/thirdparty/mbedtls/library/x509write_csr.c b/thirdparty/mbedtls/library/x509write_csr.c index d70ba0ed92..b65a11c6aa 100644 --- a/thirdparty/mbedtls/library/x509write_csr.c +++ b/thirdparty/mbedtls/library/x509write_csr.c @@ -44,6 +44,16 @@ #include "mbedtls/pem.h" #endif +/* + * For the currently used signature algorithms the buffer to store any signature + * must be at least of size MAX(MBEDTLS_ECDSA_MAX_LEN, MBEDTLS_MPI_MAX_SIZE) + */ +#if MBEDTLS_ECDSA_MAX_LEN > MBEDTLS_MPI_MAX_SIZE +#define SIGNATURE_MAX_SIZE MBEDTLS_ECDSA_MAX_LEN +#else +#define SIGNATURE_MAX_SIZE MBEDTLS_MPI_MAX_SIZE +#endif + void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx ) { memset( ctx, 0, sizeof( mbedtls_x509write_csr ) ); @@ -159,7 +169,7 @@ int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, s size_t sig_oid_len = 0; unsigned char *c, *c2; unsigned char hash[64]; - unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; + unsigned char sig[SIGNATURE_MAX_SIZE]; unsigned char tmp_buf[2048]; size_t pub_len = 0, sig_and_oid_len = 0, sig_len; size_t len = 0; |