| /* |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License, Version 1.0 only |
| * (the "License"). You may not use this file except in compliance |
| * with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://www.opensolaris.org/os/licensing. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| */ |
| /* |
| * Copyright (c) 1998, by Sun Microsystems, Inc. |
| * All rights reserved. |
| */ |
| |
| #ifndef _SYS_SHA1_CONSTS_H |
| #define _SYS_SHA1_CONSTS_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * as explained in sha1.c, loading 32-bit constants on a sparc is expensive |
| * since it involves both a `sethi' and an `or'. thus, we instead use `ld' |
| * to load the constants from an array called `sha1_consts'. however, on |
| * intel (and perhaps other processors), it is cheaper to load the constant |
| * directly. thus, the c code in SHA1Transform() uses the macro SHA1_CONST() |
| * which either expands to a constant or an array reference, depending on |
| * the architecture the code is being compiled for. |
| */ |
| |
| #include <sys/types.h> /* uint32_t */ |
| |
| extern const uint32_t sha1_consts[]; |
| |
| #if defined(__sparc) |
| #define SHA1_CONST(x) (sha1_consts[x]) |
| #else |
| #define SHA1_CONST(x) (SHA1_CONST_ ## x) |
| #endif |
| |
| /* constants, as provided in FIPS 180-1 */ |
| |
| #define SHA1_CONST_0 0x5a827999U |
| #define SHA1_CONST_1 0x6ed9eba1U |
| #define SHA1_CONST_2 0x8f1bbcdcU |
| #define SHA1_CONST_3 0xca62c1d6U |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _SYS_SHA1_CONSTS_H */ |