csutil/sha256.h Source File (Crystal Space 2.0 Public API Reference)

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csutil/sha256.h

    00001 /*
    00002     Crystal Space utility library: SHA256 class
    00003     Original C code written by Jesse Kornblum (see related source)
    00004     Adapted for Crystal Space by Stefano Angeleri <weltall2@gmail.com>
    00005
    00006     This library is free software; you can redistribute it and/or
    00007     modify it under the terms of the GNU Library General Public
    00008     License as published by the Free Software Foundation; either
    00009     version 2 of the License, or (at your option) any later version.
    00010
    00011     This library is distributed in the hope that it will be useful,
    00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00014     Library General Public License for more details.
    00015
    00016     You should have received a copy of the GNU Library General Public
    00017     License along with this library; if not, write to the Free
    00018     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00019
    00020 */
    00021
    00022 #ifndef _CSSHA256_H
    00023 #define _CSSHA256_H
    00024
    00025 #include "csextern.h"
    00026 #include "csutil/csstring.h"
    00027 #include "csutil/digest.h"
    00028 #include "csutil/hash.h"
    00029
    00030 namespace CS
    00031 {
    00032 namespace Utility
    00033 {
    00034 namespace Checksum
    00035 {
    00044   class CS_CRYSTALSPACE_EXPORT SHA256
    00045   {
    00047
    00048     uint32 total[2];
    00049     uint32 state[8];
    00050     uint8 buffer[64];
    00052
    00057     void Process (const uint8 data[64]);
    00059     void AppendInternal (const uint8* input, uint32 length);
    00064     void Finish (uint8 digest[32]);
    00065   public:
    00067     typedef CS::Utility::Checksum::Digest<32> Digest;
    00068
    00069     SHA256 ();
    00070
    00076     void Append (const uint8* input, size_t length);
    00077
    00084     Digest Finish ();
    00085
    00087     static Digest Encode(csString const&);
    00089     static Digest Encode(const char*);
    00091     static Digest Encode(const void*, size_t nbytes);
    00092   };
    00093
    00094 }//namespace Checksum
    00095 }//namespace Utility
    00096 }//namespace CS
    00097
    00098
    00099 #endif // _CSSHA256_H