@@ -701,6 +701,10 @@ static void aes_decrypt(const unsigned char *in, off_t *length, unsigned char *q

     cli_dbgmsg("aes_decrypt: Calling rijndaelSetupDecrypt\n");

     nrounds = rijndaelSetupDecrypt(rk, (const unsigned char *)key, key_n*8);

+    if (!nrounds) {

+	cli_dbgmsg("cli_pdf: aes_decrypt: nrounds = 0\n");

+	return;

+    }

     cli_dbgmsg("aes_decrypt: Beginning rijndaelDecrypt\n");

     while (len >= 16) {