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+/* $OpenBSD: sha.h,v 1.21 2015/09/13 21:09:56 doug Exp $ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 CONTRIBUTORS 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stddef.h>
+
+#ifndef HEADER_SHA_H
+#define HEADER_SHA_H
+#if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__OpenBSD__)
+#define __bounded__(x, y, z)
+#endif
+
+#include <openssl/opensslconf.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA1)
+#error SHA is disabled.
+#endif
+
+/*
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ * ! SHA_LONG has to be at least 32 bits wide. !
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ */
+
+#define SHA_LONG unsigned int
+
+#define SHA_LBLOCK 16
+#define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a
+ * contiguous array of 32 bit
+ * wide big-endian values. */
+#define SHA_LAST_BLOCK (SHA_CBLOCK-8)
+#define SHA_DIGEST_LENGTH 20
+
+typedef struct SHAstate_st
+ {
+ SHA_LONG h0,h1,h2,h3,h4;
+ SHA_LONG Nl,Nh;
+ SHA_LONG data[SHA_LBLOCK];
+ unsigned int num;
+ } SHA_CTX;
+
+#ifndef OPENSSL_NO_SHA1
+int SHA1_Init(SHA_CTX *c);
+int SHA1_Update(SHA_CTX *c, const void *data, size_t len)
+ __attribute__ ((__bounded__(__buffer__,2,3)));
+int SHA1_Final(unsigned char *md, SHA_CTX *c);
+unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
+ __attribute__ ((__bounded__(__buffer__,1,2)));
+void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
+#endif
+
+#define SHA256_CBLOCK (SHA_LBLOCK*4) /* SHA-256 treats input data as a
+ * contiguous array of 32 bit
+ * wide big-endian values. */
+#define SHA224_DIGEST_LENGTH 28
+#define SHA256_DIGEST_LENGTH 32
+
+typedef struct SHA256state_st
+ {
+ SHA_LONG h[8];
+ SHA_LONG Nl,Nh;
+ SHA_LONG data[SHA_LBLOCK];
+ unsigned int num,md_len;
+ } SHA256_CTX;
+
+#ifndef OPENSSL_NO_SHA256
+int SHA224_Init(SHA256_CTX *c);
+int SHA224_Update(SHA256_CTX *c, const void *data, size_t len)
+ __attribute__ ((__bounded__(__buffer__,2,3)));
+int SHA224_Final(unsigned char *md, SHA256_CTX *c);
+unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md)
+ __attribute__ ((__bounded__(__buffer__,1,2)));
+int SHA256_Init(SHA256_CTX *c);
+int SHA256_Update(SHA256_CTX *c, const void *data, size_t len)
+ __attribute__ ((__bounded__(__buffer__,2,3)));
+int SHA256_Final(unsigned char *md, SHA256_CTX *c);
+unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md)
+ __attribute__ ((__bounded__(__buffer__,1,2)));
+void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
+#endif
+
+#define SHA384_DIGEST_LENGTH 48
+#define SHA512_DIGEST_LENGTH 64
+
+#ifndef OPENSSL_NO_SHA512
+/*
+ * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
+ * being exactly 64-bit wide. See Implementation Notes in sha512.c
+ * for further details.
+ */
+#define SHA512_CBLOCK (SHA_LBLOCK*8) /* SHA-512 treats input data as a
+ * contiguous array of 64 bit
+ * wide big-endian values. */
+#if defined(_LP64)
+#define SHA_LONG64 unsigned long
+#define U64(C) C##UL
+#else
+#define SHA_LONG64 unsigned long long
+#define U64(C) C##ULL
+#endif
+
+typedef struct SHA512state_st
+ {
+ SHA_LONG64 h[8];
+ SHA_LONG64 Nl,Nh;
+ union {
+ SHA_LONG64 d[SHA_LBLOCK];
+ unsigned char p[SHA512_CBLOCK];
+ } u;
+ unsigned int num,md_len;
+ } SHA512_CTX;
+#endif
+
+#ifndef OPENSSL_NO_SHA512
+int SHA384_Init(SHA512_CTX *c);
+int SHA384_Update(SHA512_CTX *c, const void *data, size_t len)
+ __attribute__ ((__bounded__(__buffer__,2,3)));
+int SHA384_Final(unsigned char *md, SHA512_CTX *c);
+unsigned char *SHA384(const unsigned char *d, size_t n,unsigned char *md)
+ __attribute__ ((__bounded__(__buffer__,1,2)));
+int SHA512_Init(SHA512_CTX *c);
+int SHA512_Update(SHA512_CTX *c, const void *data, size_t len)
+ __attribute__ ((__bounded__(__buffer__,2,3)));
+int SHA512_Final(unsigned char *md, SHA512_CTX *c);
+unsigned char *SHA512(const unsigned char *d, size_t n,unsigned char *md)
+ __attribute__ ((__bounded__(__buffer__,1,2)));
+void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif