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+/* $OpenLDAP$ */
+/*
+ * FILE: sha2.h
+ * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
+ *
+ * Copyright (c) 2000-2001, Aaron D. Gifford
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
+ */
+
+#ifndef __SHA2_H__
+#define __SHA2_H__
+
+#include "portable.h"
+
+#ifdef HAVE_INTTYPES_H
+# define SHA2_USE_INTTYPES_H 1
+#endif
+
+#ifndef LITTLE_ENDIAN
+# define LITTLE_ENDIAN 1234
+#endif
+#ifndef BIG_ENDIAN
+# define BIG_ENDIAN 4321
+#endif
+#ifndef BYTE_ORDER
+# ifdef WORDS_BIGENDIAN
+# define BYTE_ORDER BIG_ENDIAN
+# else
+# define BYTE_ORDER LITTLE_ENDIAN
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Import u_intXX_t size_t type definitions from system headers. You
+ * may need to change this, or define these things yourself in this
+ * file.
+ */
+#include <sys/types.h>
+
+#ifdef SHA2_USE_INTTYPES_H
+
+#include <inttypes.h>
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+
+/*** SHA-256/384/512 Various Length Definitions ***********************/
+#define SHA256_BLOCK_LENGTH 64
+#define SHA256_DIGEST_LENGTH 32
+#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
+#define SHA384_BLOCK_LENGTH 128
+#define SHA384_DIGEST_LENGTH 48
+#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
+#define SHA512_BLOCK_LENGTH 128
+#define SHA512_DIGEST_LENGTH 64
+#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
+
+
+/*** SHA-256/384/512 Context Structures *******************************/
+/* NOTE: If your architecture does not define either u_intXX_t types or
+ * uintXX_t (from inttypes.h), you may need to define things by hand
+ * for your system:
+ */
+#if 0
+typedef unsigned char u_int8_t; /* 1-byte (8-bits) */
+typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */
+typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */
+#endif
+/*
+ * Most BSD systems already define u_intXX_t types, as does Linux.
+ * Some systems, however, like Compaq's Tru64 Unix instead can use
+ * uintXX_t types defined by very recent ANSI C standards and included
+ * in the file:
+ *
+ * #include <inttypes.h>
+ *
+ * If you choose to use <inttypes.h> then please define:
+ *
+ * #define SHA2_USE_INTTYPES_H
+ *
+ * Or on the command line during compile:
+ *
+ * cc -DSHA2_USE_INTTYPES_H ...
+ */
+#ifdef SHA2_USE_INTTYPES_H
+
+typedef struct _SHA256_CTX {
+ uint32_t state[8];
+ uint64_t bitcount;
+ uint8_t buffer[SHA256_BLOCK_LENGTH];
+} SHA256_CTX;
+typedef struct _SHA512_CTX {
+ uint64_t state[8];
+ uint64_t bitcount[2];
+ uint8_t buffer[SHA512_BLOCK_LENGTH];
+} SHA512_CTX;
+
+#else /* SHA2_USE_INTTYPES_H */
+
+typedef struct _SHA256_CTX {
+ u_int32_t state[8];
+ u_int64_t bitcount;
+ u_int8_t buffer[SHA256_BLOCK_LENGTH];
+} SHA256_CTX;
+typedef struct _SHA512_CTX {
+ u_int64_t state[8];
+ u_int64_t bitcount[2];
+ u_int8_t buffer[SHA512_BLOCK_LENGTH];
+} SHA512_CTX;
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+typedef SHA512_CTX SHA384_CTX;
+
+
+/*** SHA-256/384/512 Function Prototypes ******************************/
+/* avoid symbol clash with other crypto libs */
+#define SHA256_Init pw_SHA256_Init
+#define SHA256_Update pw_SHA256_Update
+#define SHA256_Final pw_SHA256_Final
+#define SHA256_End pw_SHA256_End
+#define SHA256_Data pw_SHA256_Data
+
+#define SHA384_Init pw_SHA384_Init
+#define SHA384_Update pw_SHA384_Update
+#define SHA384_Final pw_SHA384_Final
+#define SHA384_End pw_SHA384_End
+#define SHA384_Data pw_SHA384_Data
+
+#define SHA512_Init pw_SHA512_Init
+#define SHA512_Update pw_SHA512_Update
+#define SHA512_Final pw_SHA512_Final
+#define SHA512_End pw_SHA512_End
+#define SHA512_Data pw_SHA512_Data
+
+#ifndef NOPROTO
+#ifdef SHA2_USE_INTTYPES_H
+
+void SHA256_Init(SHA256_CTX *);
+void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
+void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
+char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA384_CTX*);
+void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
+void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
+char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA512_CTX*);
+void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
+void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
+char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#else /* SHA2_USE_INTTYPES_H */
+
+void SHA256_Init(SHA256_CTX *);
+void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
+void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
+char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA384_CTX*);
+void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
+void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
+char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA512_CTX*);
+void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
+void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
+char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+#else /* NOPROTO */
+
+void SHA256_Init();
+void SHA256_Update();
+void SHA256_Final();
+char* SHA256_End();
+char* SHA256_Data();
+
+void SHA384_Init();
+void SHA384_Update();
+void SHA384_Final();
+char* SHA384_End();
+char* SHA384_Data();
+
+void SHA512_Init();
+void SHA512_Update();
+void SHA512_Final();
+char* SHA512_End();
+char* SHA512_Data();
+
+#endif /* NOPROTO */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __SHA2_H__ */
+