don't copy buffer to ifself

2026-08-22 16:40:26 +00:00 · 2018-08-09 16:32:43 -04:00
parent f7e4afc282
commit d320a89590
1 changed files with 2 additions and 1 deletions
@@ -1036,7 +1036,8 @@ namespace crypto
 			}
 		}
 		// encrypt/decrypt data and add to hash
-		memcpy (buf, msg, msgLen);
+		if (buf != msg)
+			memcpy (buf, msg, msgLen);
 		if (encrypt)
 		{
 			chacha20 (buf, msgLen, nonce, key, 1); // encrypt