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authorMichael Vogt <egon@tas>2006-12-07 11:45:13 +0100
committerMichael Vogt <egon@tas>2006-12-07 11:45:13 +0100
commit207825063be51d68768e242f06b26ee6fccd3aaf (patch)
tree4c755597279d2574e787460c5d0f3bc34d132a64 /apt-pkg/contrib/sha256.h
parent7106240056767caad5a55fe9c542842065cb5829 (diff)
parent1c05ebd6da9491d316997a98db1451f7b0526603 (diff)
merged with apt--mvo
Diffstat (limited to 'apt-pkg/contrib/sha256.h')
-rw-r--r--apt-pkg/contrib/sha256.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/apt-pkg/contrib/sha256.h b/apt-pkg/contrib/sha256.h
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+// $Id: sha1.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
+/* ######################################################################
+
+ SHA256SumValue - Storage for a SHA-256 hash.
+ SHA256Summation - SHA-256 Secure Hash Algorithm.
+
+ This is a C++ interface to a set of SHA256Sum functions, that mirrors
+ the equivalent MD5 & SHA1 classes.
+
+ ##################################################################### */
+ /*}}}*/
+#ifndef APTPKG_SHA256_H
+#define APTPKG_SHA256_H
+
+#ifdef __GNUG__
+#pragma interface "apt-pkg/sha256.h"
+#endif
+
+#include <string>
+#include <algorithm>
+
+using std::string;
+using std::min;
+
+class SHA256Summation;
+
+class SHA256SumValue
+{
+ friend class SHA256Summation;
+ unsigned char Sum[32];
+
+ public:
+
+ // Accessors
+ bool operator ==(const SHA256SumValue &rhs) const;
+ string Value() const;
+ inline void Value(unsigned char S[32])
+ {for (int I = 0; I != sizeof(Sum); I++) S[I] = Sum[I];};
+ inline operator string() const {return Value();};
+ bool Set(string Str);
+ inline void Set(unsigned char S[32])
+ {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
+
+ SHA256SumValue(string Str);
+ SHA256SumValue();
+};
+
+struct sha256_ctx {
+ uint32_t count[2];
+ uint32_t state[8];
+ uint8_t buf[128];
+};
+
+class SHA256Summation
+{
+ struct sha256_ctx Sum;
+
+ bool Done;
+
+ public:
+
+ bool Add(const unsigned char *inbuf,unsigned long inlen);
+ inline bool Add(const char *Data) {return Add((unsigned char *)Data,strlen(Data));};
+ bool AddFD(int Fd,unsigned long Size);
+ inline bool Add(const unsigned char *Beg,const unsigned char *End)
+ {return Add(Beg,End-Beg);};
+ SHA256SumValue Result();
+
+ SHA256Summation();
+};
+
+#endif