Increase max len of chiper names

For example ECDHE-ECRSA-AES256-GCM-SHA384

src/common/ssl.h

@@ -37,7 +37,7 @@ struct cert_info {
 
 struct chiper_info {
     char version[16];
-    char chiper[24];
+    char chiper[48];
     int chiper_bits;
 };