Check md_size isn't negative before we use it

[openssl.git] / crypto / sm2 / sm2_za.c

diff --git a/crypto/sm2/sm2_za.c b/crypto/sm2/sm2_za.c
index 9b1f70cdddecb5b43bf1a22877edbd206ac078ae..94d0dac02fb90595c9da7adc9469a1de55236b76 100644 (file)
--- a/crypto/sm2/sm2_za.c
+++ b/crypto/sm2/sm2_za.c
@@ -15,8 +15,9 @@
 #include <openssl/evp.h>
 #include <openssl/bn.h>
 #include <string.h>
+#include "internal/numbers.h"
 
-int SM2_compute_userid_digest(uint8_t *out,
+int sm2_compute_userid_digest(uint8_t *out,
                               const EVP_MD *digest,
                               const char *user_id,
                               const EC_KEY *key)