iPXE
sha384.c
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00001 /*
00002  * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License as
00006  * published by the Free Software Foundation; either version 2 of the
00007  * License, or any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00017  * 02110-1301, USA.
00018  *
00019  * You can also choose to distribute this program under the terms of
00020  * the Unmodified Binary Distribution Licence (as given in the file
00021  * COPYING.UBDL), provided that you have satisfied its requirements.
00022  */
00023 
00024 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
00025 
00026 /** @file
00027  *
00028  * SHA-384 algorithm
00029  *
00030  */
00031 
00032 #include <stdint.h>
00033 #include <byteswap.h>
00034 #include <ipxe/crypto.h>
00035 #include <ipxe/asn1.h>
00036 #include <ipxe/sha512.h>
00037 
00038 /** SHA-384 initial digest values */
00039 static const struct sha512_digest sha384_init_digest = {
00040         .h = {
00041                 cpu_to_be64 ( 0xcbbb9d5dc1059ed8ULL ),
00042                 cpu_to_be64 ( 0x629a292a367cd507ULL ),
00043                 cpu_to_be64 ( 0x9159015a3070dd17ULL ),
00044                 cpu_to_be64 ( 0x152fecd8f70e5939ULL ),
00045                 cpu_to_be64 ( 0x67332667ffc00b31ULL ),
00046                 cpu_to_be64 ( 0x8eb44a8768581511ULL ),
00047                 cpu_to_be64 ( 0xdb0c2e0d64f98fa7ULL ),
00048                 cpu_to_be64 ( 0x47b5481dbefa4fa4ULL ),
00049         },
00050 };
00051 
00052 /**
00053  * Initialise SHA-384 algorithm
00054  *
00055  * @v ctx               SHA-384 context
00056  */
00057 static void sha384_init ( void *ctx ) {
00058         struct sha512_context *context = ctx;
00059 
00060         sha512_family_init ( context, &sha384_init_digest, SHA384_DIGEST_SIZE );
00061 }
00062 
00063 /** SHA-384 algorithm */
00064 struct digest_algorithm sha384_algorithm = {
00065         .name           = "sha384",
00066         .ctxsize        = sizeof ( struct sha512_context ),
00067         .blocksize      = sizeof ( union sha512_block ),
00068         .digestsize     = SHA384_DIGEST_SIZE,
00069         .init           = sha384_init,
00070         .update         = sha512_update,
00071         .final          = sha512_final,
00072 };
00073 
00074 /** "sha384" object identifier */
00075 static uint8_t oid_sha384[] = { ASN1_OID_SHA384 };
00076 
00077 /** "sha384" OID-identified algorithm */
00078 struct asn1_algorithm oid_sha384_algorithm __asn1_algorithm = {
00079         .name = "sha384",
00080         .digest = &sha384_algorithm,
00081         .oid = ASN1_OID_CURSOR ( oid_sha384 ),
00082 };