diff options
Diffstat (limited to 'qemu/roms/ipxe/src/crypto/rbg.c')
-rw-r--r-- | qemu/roms/ipxe/src/crypto/rbg.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/qemu/roms/ipxe/src/crypto/rbg.c b/qemu/roms/ipxe/src/crypto/rbg.c deleted file mode 100644 index 943b288c3..000000000 --- a/qemu/roms/ipxe/src/crypto/rbg.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * RBG mechanism - * - * This mechanism is designed to comply with ANS X9.82 Part 4 (April - * 2011 Draft) Section 10. This standard is unfortunately not freely - * available. - * - * The chosen RBG design is that of a DRBG with a live entropy source - * with no conditioning function. Only a single security strength is - * supported. No seedfile is used since there may be no non-volatile - * storage available. The system UUID is used as the personalisation - * string. - */ - -#include <stdint.h> -#include <string.h> -#include <ipxe/init.h> -#include <ipxe/settings.h> -#include <ipxe/uuid.h> -#include <ipxe/crypto.h> -#include <ipxe/drbg.h> -#include <ipxe/rbg.h> - -/** The RBG */ -struct random_bit_generator rbg; - -/** - * Start up RBG - * - * @ret rc Return status code - * - * This is the RBG_Startup function defined in ANS X9.82 Part 4 (April - * 2011 Draft) Section 9.1.2.2. - */ -static int rbg_startup ( void ) { - union uuid uuid; - int len; - int rc; - - /* Try to obtain system UUID for use as personalisation - * string, in accordance with ANS X9.82 Part 3-2007 Section - * 8.5.2. If no UUID is available, proceed without a - * personalisation string. - */ - if ( ( len = fetch_uuid_setting ( NULL, &uuid_setting, &uuid ) ) < 0 ) { - rc = len; - DBGC ( &rbg, "RBG could not fetch personalisation string: " - "%s\n", strerror ( rc ) ); - len = 0; - } - - /* Instantiate DRBG */ - if ( ( rc = drbg_instantiate ( &rbg.state, &uuid, len ) ) != 0 ) { - DBGC ( &rbg, "RBG could not instantiate DRBG: %s\n", - strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * Shut down RBG - * - */ -static void rbg_shutdown ( void ) { - - /* Uninstantiate DRBG */ - drbg_uninstantiate ( &rbg.state ); -} - -/** RBG startup function */ -static void rbg_startup_fn ( void ) { - - /* Start up RBG. There is no way to report an error at this - * stage, but a failed startup will result in an invalid DRBG - * that refuses to generate bits. - */ - rbg_startup(); -} - -/** RBG shutdown function */ -static void rbg_shutdown_fn ( int booting __unused ) { - - /* Shut down RBG */ - rbg_shutdown(); -} - -/** RBG startup table entry */ -struct startup_fn startup_rbg __startup_fn ( STARTUP_NORMAL ) = { - .startup = rbg_startup_fn, - .shutdown = rbg_shutdown_fn, -}; |