Merge remote-tracking branch 'mvo/feature/apt-ftparchive-srccache2' into debian/sid

[apt.git] / apt-pkg / contrib / sha2.h

diff --git a/apt-pkg/contrib/sha2.h b/apt-pkg/contrib/sha2.h
index bf759ad45ba01030013d19832d4201a99e12dc8b..a25ad4d322065bd928a578fbdbcac2a203c1197a 100644 (file)
--- a/apt-pkg/contrib/sha2.h
+++ b/apt-pkg/contrib/sha2.h
@@ -1,197 +1,109 @@
-/*
- * 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__
-
-#ifdef __cplusplus
-extern "C" {
+// -*- mode: cpp; mode: fold -*-
+// Description                                                          /*{{{*/
+// $Id: sha512.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
+/* ######################################################################
+
+   SHA{512,256}SumValue - Storage for a SHA-{512,256} hash.
+   SHA{512,256}Summation - SHA-{512,256} Secure Hash Algorithm.
+   
+   This is a C++ interface to a set of SHA{512,256}Sum functions, that mirrors
+   the equivalent MD5 & SHA1 classes. 
+
+   ##################################################################### */
+                                                                        /*}}}*/
+#ifndef APTPKG_SHA2_H
+#define APTPKG_SHA2_H
+
+#include <cstring>
+
+#include "sha2_internal.h"
+#include "hashsum_template.h"
+
+#ifndef APT_10_CLEANER_HEADERS
+#include <string>
+#include <algorithm>
+#include <stdint.h>

 #endif
 
 
 #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>
+typedef HashSumValue<512> SHA512SumValue;
+typedef HashSumValue<256> SHA256SumValue;
+
+class SHA2SummationBase : public SummationImplementation
+{
+ protected:
+   bool Done;
+ public:
+   bool Add(const unsigned char *inbuf, unsigned long long len) = 0;
+
+   void Result();
+};
+
+class SHA256Summation : public SHA2SummationBase
+{
+   SHA256_CTX ctx;
+   unsigned char Sum[32];
+
+   public:
+   bool Add(const unsigned char *inbuf, unsigned long long len)
+   {
+      if (Done) 
+         return false;
+      SHA256_Update(&ctx, inbuf, len);
+      return true;
+   };
+   using SummationImplementation::Add;
+
+   SHA256SumValue Result()
+   {
+      if (!Done) {
+         SHA256_Final(Sum, &ctx);
+         Done = true;
+      }
+      SHA256SumValue res;
+      res.Set(Sum);
+      return res;
+   };
+   SHA256Summation()
+   {
+      SHA256_Init(&ctx);
+      Done = false;
+      memset(&Sum, 0, sizeof(Sum));
+   };
+};
+
+class SHA512Summation : public SHA2SummationBase
+{
+   SHA512_CTX ctx;
+   unsigned char Sum[64];
+
+   public:
+   bool Add(const unsigned char *inbuf, unsigned long long len)
+   {
+      if (Done) 
+         return false;
+      SHA512_Update(&ctx, inbuf, len);
+      return true;
+   };
+   using SummationImplementation::Add;
+
+   SHA512SumValue Result()
+   {
+      if (!Done) {
+         SHA512_Final(Sum, &ctx);
+         Done = true;
+      }
+      SHA512SumValue res;
+      res.Set(Sum);
+      return res;
+   };
+   SHA512Summation()
+   {
+      SHA512_Init(&ctx);
+      Done = false;
+      memset(&Sum, 0, sizeof(Sum));
+   };
+};

 
 

-#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
 #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 ******************************/
-#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__ */
-