diff -up openssl-1.0.0e/engines/e_chil.c.chil openssl-1.0.0e/engines/e_chil.c

--- openssl-1.0.0e/engines/e_chil.c.chil	2010-06-15 19:25:12.000000000 +0200

+++ openssl-1.0.0e/engines/e_chil.c	2011-09-21 17:32:03.000000000 +0200

@@ -1261,6 +1261,11 @@ static int hwcrhk_insert_card(const char

         UI *ui;

 	void *callback_data = NULL;

         UI_METHOD *ui_method = NULL;

+	/* Despite what the documentation says prompt_info can be

+	 * an empty string.

+	 */

+	if (prompt_info && !*prompt_info)

+		prompt_info = NULL;

         if (cactx)

                 {

@@ -1287,7 +1292,7 @@ static int hwcrhk_insert_card(const char

 	if (ui)

 		{

-		char answer;

+		char answer = '\0';

 		char buf[BUFSIZ];

 		/* Despite what the documentation says wrong_info can be

 	 	 * an empty string.